Related
I am trying to get user input and then print that number of boxes on the screen, I can get the boxes spawning if I do no checks and just set them to spawn whenever I click one, However, once I start adding in checks the boxes just stop spawning.
var count = 1;
function spawnBox() {
var container = document.getElementById("container");
var newBox = document.createElement("div");
newBox.className = "box";
newBox.innerHTML = count;
container.appendChild(newBox);
count++
}
function checkIfCanSpawn() {
while (count < inputNumber) {
spawnBox();
}
}
div.box {
width: 10vw;
height: 8vw;
background: rgb(8, 144, 168);
margin: 1vw;
float: left;
text-align: center;
font-size: 5vw;
padding-top: 1vw;
font-family: sans-serif;
}
<label id="type in a number" name="Input a number"> Type In a number </label>
<input id="inputNum" type="number" name="inputNumber"> </input>
Tweaked a little to make it work.
Added onchange event on input class.
then instead of using the count, i made use of the available while loop and passed the count instead.
then clear the "container" every run.
function spawnBox(count) {
// Get the container
var container = document.getElementById("container");
// Create a new div
var newBox = document.createElement("div");
newBox.className = "box";
newBox.innerHTML = count;
// Append it to the container
container.appendChild(newBox);
// Increment count
count++
}
function checkIfCanSpawn() {
document.getElementById("container").innerHTML = "";
var inputNumber = document.getElementById("inputNum").value;
var x = 1;
while (x <= inputNumber) {
spawnBox(x);
x++;
}
}
div.box {
width: 10vw;
height: 8vw;
background: rgb(8, 144, 168);
margin: 1vw;
float: left;
text-align: center;
font-size: 5vw;
padding-top: 1vw;
font-family: sans-serif;
}
<label id="type in a number" name="Input a number"> Type In a number </label>
<input id="inputNum" type="number" name="inputNumber" onchange="checkIfCanSpawn()" />
<div id="container"></div>
https://jsfiddle.net/Lqj4dktw/
Add a button with a click-eventHandler to call the spawnBox():
$(document).ready(function() {
$("#btn" ).click(function(){
let inputNumber = $("#inputNum").val();
while (count < inputNumber) {
spawnBox();
}
})
})
Her is a working fiddle
I've created a program that randomly spawns a span (in the form of a circle). I want to change the onClick of the previous span class when clicked on.
I've already attempted to set the id of the new span element to something that creates recursively (span.id = "a" + t; t++;) or something like that.
<!doctype html>
<link href="https://fonts.googleapis.com/css?
family=Montserrat" rel="stylesheet">
<link rel="icon" type="image/jpg" href="/vNidjVg-
_400x400.jpg"/>
<style>
body{
background-color: #010417;
font-family: 'Montserrat', sans-serif;
}
#keyframes a{
0% {opacity: 0;}
100%{opacity: 1;}
}
button{
background-color: #010417;
border-radius: 10px;
border: 4px solid white;
color: white;
padding: 10px 26px;
font-size: 20px;
}
</style>
<div id="myDIV">
<script>
document.title = prompt("I don't know what to make the
document's title, so what do you want it to be called?");
function getRndInteger(min, max) {
return Math.floor(Math.random() * (max - min + 1) ) + min;
}
var but = 2;
var x = 0
function button(){
if(but === 2){
myFunction();
but = 0;
}else{}
}
var t = 0;
var q = -1;
function myFunction() {
var para = document.createElement("SPAN");
para.style.position = "absolute";
x = getRndInteger(0, (window.innerWidth - 60))
para.style.left = x + "px"
var p = getRndInteger(0, (window.innerHeight - 60))
para.style.top = p + "px"
para.style.display = "inline-block;"
para.style.height = "50px"
para.style.width = "50px"
para.style.backgroundColor="red"
para.style.borderRadius = "50px"
para.style.border = "1px solid black"
para.style.animation = "1s a linear"
para.id = "a" + t;
document.getElementById("a" + q).onclick=f
q++
t++;
para.onclick=myFunction
document.getElementById("myDIV").appendChild(para);
}
function f(){}
</script>
</div>
<center>
<button class="1" id="button" onClick="button();">Start</button></center>
I expect the output of this to be the previous span class to be disabled (onclick set to f())
Firstly, you should define as much of the style of your elements as possible in CSS instead of defining it in Javascript.
Secondly, when a onclick is called in JS, the first parameter of the function should be event which is a representation of the click event that just appeared. Here in the onclick you can get the clicked element with event.toElement which allows you to redefine onclick.
I think what you are trying to do should look like something like this :
var container = document.getElementById("container");
function getRndInteger(min, max) {
return Math.floor(Math.random() * (max - min + 1) ) + min;
}
function spawn() {
var span = document.createElement("SPAN");
span.style.left = getRndInteger(30, (container.offsetWidth - 30)) + "px";
span.style.top = getRndInteger(30, (container.offsetHeight - 30)) + "px";
span.onclick = fA;
container.appendChild(span);
}
function fA(event) {
var span = event.toElement
alert("first click here");
span.onclick = fB;
}
function fB(event) {
alert("second click here");
}
div#container {
width: 300px;
height: 300px;
}
div#container span {
width: 30px;
height: 30px;
position: absolute;
border-radius: 100%;
background-color: red;
}
<button onclick="spawn()">Spawn a span</button>
<div id="container"></div>
I am trying to solve problem with correct working of 2 buttons (I have called them btnleft and btnright). I will use them to change opacity/alpha channel for random color (for example hsl(x, y%, z%, 1) -> hsl(x, y%, z%, 0.8)).
a variable is for opacity value, btnleft is for changing opacity down and btnright for changing up. Main function alphaValue is not working when I click left/right button (and I do not see any error on WWW console).
HSLinStringAlpha is hsl(hue, saturation%, lumination%, opacity) notation.
Below I put my code (maybe too long, but working without opacity changing).
Thanks for any advice.
/* Nested functions with errors */
function colorChange() {
function randomColor() {
let Cmax = []; let Cmin = []; let Lum = []; let Delta = [];
let Hue = []; let Sat = [];
let HueAngle = Math.round(60 * Hue);
let SatInt = Math.round(100 * Sat);
let LumInt = Math.round(100 * Lum);
/* Here is probably some mistake (wrong method of made function?) */
function FullHSLCode() {
for (let i = 0; i < indexValue.length / 3; i++) {
HSLinString[i] = `hsl(${HueAngle[i]}, ${SatInt[i]}%, ${LumInt[i]}%)`;
}
return HSLinString;
}
FullHSLCode();
}
/* End of randomColor(), here I was tried to made closure */
randomColor();
var a = 1;
var HSLinStringAlpha = [`hsla(${HueAngle[0]}, ${SatInt[0]}%, ${LumInt[0]}%, ${a})`];
/* alphaValue() doesn't work after move it outside randomColor() function - WWW console shows that HueAngle, SatInt, LumInt variables aren't accessible */
function alphaValue(HSLinStringAlpha, HueAngle, SatInt, LumInt, a) {
if (this.id !== "btn1") {
//if(button1.onclick === true) {
if (this.id === "btnleft") {
a -= 0.05;
} else if (this.id === "btnright") {
a += 0.05;
}
HSLinStringAlpha.push(`hsla(${HueAngle[0]}, ${SatInt[0]}%, ${LumInt[0]}%, ${a})`);
HSLinStringAlpha.shift();
}
return HSLinStringAlpha;
}
alphaValue();
/*
let button1 = document.getElementById("btnleft");
let button2 = document.getElementById("btnright");
button1.disabled = false;
button2.disabled = false;
button1.addEventListener("click", alphaValue, false);
button2.addEventListener("click", alphaValue, false);
*/
}
to check which button is clicked you should not using
if (button1.onclick === true)
but use like
if (this.id === 'btnleft')
window.addEventListener("DOMContentLoaded", colorChange);
function colorChange() {
document.getElementById("btn1").addEventListener("click", randomColor, false);
function randomColor() {
let HEXColor = [];
let HSLColor = [];
let RGBinString = []; // defines color in rgb(num,num,num) style
let HEXinString = []; // defines color in hexadecimal style
let HSLinString = []; // defines color in hsl() style
/* Randomize r,g,b numbers of colors in rgb(num,num,num) style */
let indexValue = [];
let colorArray = [];
function RGBrandom() {
for(let j = 0; j <= 8; j++) {
indexValue[j] = Math.floor(Math.random() * 256);
colorArray.push(indexValue[j]);
}
for(i = 0; i < 3; i++) {
RGBinString[i] = `rgb(${indexValue[3*i]},${indexValue[3*i+1]},${indexValue[3*i+2]})`;
}
return RGBinString;
}
RGBrandom();
// Calculate hex code string from rgb code
function RGBtoHex(indexValue) {
const HEXcolorValue = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, "a", "b", "c", "d", "e", "f"];
for(let i = 0; i < indexValue.length; i++) {
if(indexValue[i] <= 15) {
HEXColor.push(0, HEXcolorValue[indexValue[i]]);
}
else {
HEXColor.push(HEXcolorValue[Math.floor(indexValue[i] / 16)], HEXcolorValue[(indexValue[i]) % 16]);
}
}
return HEXColor;
}
let HEXFullColor = RGBtoHex(indexValue);
function FullHEXCode() {
for(let j = 0; j < HEXFullColor.length / 6; j++) {
HEXFullColor[j] = HEXFullColor.slice(6 * j, 6 * j + 6);
HEXinString[j] = HEXFullColor[j].join("");
HEXinString[j] = `#${HEXinString[j]}`;
}
return HEXinString;
}
FullHEXCode();
let RGBArray = [];
function RGBvalueChange() {
for(let j = 0; j <= 8; j++) {
/* for Red indexes (j = 0, 3, 6, etc.) */
if(j % 3 === 0) {
RGBArray.push(indexValue[j] / 255);
}
/* for Green indexes (j = 1, 4, 7, etc.) */
else if((j + 2) % 3 === 0) {
RGBArray.push(indexValue[j] / 255);
}
/* for Blue indexes (j = 2, 5, 8, etc.) */
else {
RGBArray.push(indexValue[j] / 255);
}
}
return RGBArray;
}
RGBvalueChange();
let Cmax = [];
let Cmin = [];
let Lum = [];
let Delta = [];
let Hue = [];
let Sat = [];
let HuePercent = [];
let SatInt = [];
let LumInt = [];
for(let i = 0; i < indexValue.length / 3; i++) {
Cmin.push(Math.min(RGBArray[3 * i], RGBArray[3 * i + 1], RGBArray[3 * i + 2])); // 3 values
Cmax.push(Math.max(RGBArray[3 * i], RGBArray[3 * i + 1], RGBArray[3 * i + 2])); // 3 values
Lum.push((Cmax[i] + Cmin[i]) / 2); // 3 values
Delta[i] = Cmax[i] - Cmin[i]; // 3 values
if(Delta[i] === 0) {
Hue.push(0); //Hue[i] === 0;
Sat.push(0); //Sat[i] === 0;
}
else {
// Hue dependance from other parameters
if(Cmax[i] === RGBArray[3 * i]) {
Hue.push(((RGBArray[3 * i + 1] - RGBArray[3 * i + 2]) / Delta[i] + (RGBArray[3 * i + 1] < RGBArray[3 * i + 2] ? 6 : 0)));
}
else if(Cmax[i] === RGBArray[3 * i + 1]) {
Hue.push((RGBArray[3 * i + 2] - RGBArray[3 * i]) / Delta[i] + 2);
}
else if(Cmax[i] === RGBArray[3 * i + 2]) {
Hue.push((RGBArray[3 * i] - RGBArray[3 * i + 1]) / Delta[i] + 4);
}
else {
Hue.push(0);
}
Sat[i] = Lum[i] > 0.5 ? (0.5 * Delta[i]) / (1 - Lum[i]) : Delta[i] / (2 * Lum[i]);
Sat.push(Sat[i]);
}
HuePercent[i] = Math.round(60 * Hue[i]);
SatInt[i] = Math.round(100 * Sat[i]);
LumInt[i] = Math.round(100 * Lum[i]);
}
function FullHSLCode() {
for(let j = 0; j < indexValue.length / 3; j++) {
HSLinString[j] = `hsl(${HuePercent[j]}, ${SatInt[j]}%, ${LumInt[j]}%)`;
}
return HSLinString;
}
FullHSLCode();
var a = 1;
let HSLinStringAlpha = [`hsl(${HuePercent[0]}, ${SatInt[0]}%, ${LumInt[0]}%, ${a})`];
let button1 = document.getElementById("btnleft");
let button2 = document.getElementById("btnright");
button1.disabled = false;
button2.disabled = false;
function alphaValue() {
if(this.id !== 'btn1') {
//if(button1.onclick === true) {
if(this.id === 'btnleft') {
a -= 0.05;
}
else {
a += 0.05;
}
//console.log(a)
HSLinStringAlpha[0] = [`hsl(${HuePercent[0]}, ${SatInt[0]}%, ${LumInt[0]}%, ${a})`];
//HSLinStringAlpha.shift();
}
console.log(HSLinStringAlpha[0][0])
return HSLinStringAlpha;
}
button1.addEventListener("click", alphaValue, false);
button2.addEventListener("click", alphaValue, false);
document.querySelector("p").innerHTML = [`${a} `, HSLinStringAlpha];
// 3 random colors in every element (circle)
document.getElementById("color1").value = HEXinString[0];
document.getElementById("color2").value = HEXinString[1];
document.getElementById("color3").value = HEXinString[2];
document.getElementById("color4").value = RGBinString[0];
document.getElementById("color5").value = RGBinString[1];
document.getElementById("color6").value = RGBinString[2];
document.getElementById("color7").value = HSLinStringAlpha[0];
document.getElementById("color8").value = HSLinString[1];
document.getElementById("color9").value = HSLinString[2];
box1.style.backgroundColor = HSLinStringAlpha[0];
box2.style.backgroundColor = HSLinStringAlpha[0];
box3.style.backgroundColor = HSLinStringAlpha[0];
}
}
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
.container {
height: 100vh;
width: 100vw;
background-color: lightgray;
position: absolute;
}
.bigbox {
min-height: 320px;
width: 630px;
position: absolute;
}
.box {
height: auto;
width: 33%;
margin: 0 0 10px;
background-color: lightgray;
display: block;
position: relative;
float: left;
}
.colorbox {
height: 150px;
width: 150px;
margin: 5px auto;
border-radius: 50%;
background-color: #234523;
display: block;
}
.text {
height: auto;
width: 100%;
display: block;
float: left;
}
.shape {
height: 1.75em;
width: calc(100% - 3px);
margin: 0 auto 5px;
font-size: 18px;
text-align: left;
border: gray solid 1px;
display: block;
}
p {
display: inline-block;
margin: 10px 5px;
float:right;
}
.arrowbox {
height: 100%;
width: 100%;
margin: 0 auto;
font-size: 20px;
display: block;
float: left;
}
.buttons {
height: 100%;
width: 40%;
margin: 10px auto;
display: block;
float: left;
}
.testbutton {
height: 100%;
width: 40%;
font-size: 20px;
display: block;
float: left;
}
.arrowbutton {
height: 100%;
width: 30%;
font-size: 20px;
display: block;
float: left;
}
.buttonbox {
height: 3.5em;
width: 100%;
font-size: 20px;
display: block;
clear: both;
}
#btn1 {
height: 100%;
width: 8.5em;
margin: 0 auto;
font-size: 20px;
display: block;
}
<div class="container">
<div class="bigbox">
<div id="box4" class="box">
<div id="box1" class="colorbox"></div>
<div class="text">
<input type="text" id="color1" class="shape" value="" size="12" maxlength="7" readonly="readonly" />
<input type="text" id="color4" class="shape" value="" size="12" maxlength="7" readonly="readonly" />
<input type="text" id="color7" class="shape" value="" size="12" maxlength="7" readonly="readonly" />
</div>
</div>
<div id="box5" class="box">
<div id="box2" class="colorbox"></div>
<div class="text">
<input type="text" id="color2" class="shape" value="" size="12" maxlength="15" readonly="readonly" />
<input type="text" id="color5" class="shape" value="" size="12" maxlength="15" readonly="readonly" />
<input type="text" id="color8" class="shape" value="" size="12" maxlength="15" readonly="readonly" />
</div>
</div>
<div id="box6" class="box">
<div id="box3" class="colorbox"></div>
<div class="text">
<input type="text" id="color3" class="shape" value="" size="12" maxlength="15" readonly="readonly" />
<input type="text" id="color6" class="shape" value="" size="12" maxlength="15" readonly="readonly" />
<input type="text" id="color9" class="shape" value="" size="12" maxlength="15" readonly="readonly" />
</div>
</div>
<div class="buttonbox">
<div class="arrowbox">
<p>Yes, it's almost something what I'm looking for, but...Yeah you need some extra options - click "TEST" button below.</p>
<div class="buttons">
<button id="btnleft" class="arrowbutton">◄</button>
<button id="btncenter" class="testbutton">RESET</button>
<button id="btnright" class="arrowbutton">►</button>
</div>
</div>
<button id="btn1" onclick="colorChange();">Click for color !!!</button>
</div>
</div>
</div>
I have created a calculator I use for counting carbs for my 7 y/o type 1 diabetic but as I add more values into my array the page is getting too long.
I'm looking for a way to start with a single select for the food name then select the weight and it calculates the carbs. Then have a button to dynamically add another row to the form in order to select a new food item and calculate the results of any further additions.
This is my functional code base:
<html><head>
<meta name = "viewport" content = "initial-scale = 1.0, user-scalable = no">
<title>Carb Calculator</title>
<style>
#container{width: 200px; margin: 0 auto;}
label { font-size:20px; display: inline-block; width: 45%; text-align: right;}
input[type="text"][disabled] {width: 12%; background-color: white; color: black; font-weight: bolder;}
input[type="button"] {}
select {width: 15%}
</style></head>
<body>
<script language="javascript" type="text/javascript">
var myArray = [['Banana',0.1428571429], ['Blackberry',0.1], ['Blueberry',0.1418918919], ['Carrots',0.09836065574], ['Cantaloupe',0.08], ['Cherry Tomato',0.05882352941], ['Cucumber',0.03653846154], ['Green apple',0.1373626374], ['Honeydew',0.09], ['Pear',0.15], ['Raspberry',0.12], ['Plum',0.11], ['Strawberry',0.075], ['Watermelon',0.075]];
function reset(){
var t=0;
for (var i=0; i<myArray.length; i++) {
var v = "val"+i;
document.calc.elements[v].value=0;
}
}
function calculate(){
var t=0;
var tt=0;
for (var i=0; i<myArray.length; i++) {
var v = "val"+i;
var a = "answer"+i;
if(isNaN(parseInt(document.calc.elements[v].value))) {
//document.calc.elements[a].value="";
} else {
tt=(parseInt(document.calc.elements[v].value))* myArray[i][1];
document.calc.elements[a].value=tt.toFixed(1);
t+=tt;
}
}
document.calc.answerTot.value=(t).toFixed(1)
}
document.write("<form name=\"calc\" action=\"post\">");
for (var i=0; i<myArray.length; i++) {
var vv = "val"+i;
var aa = "answer"+i;
document.write("<label>"+myArray[i][0]+":</label> <select name=\""+ vv +"\" onchange=\"calculate()\" >");
for (var j=0; j<301; j++) {
document.write("<option value=" +j+ ">" +j+ "</option>");
}
document.write("</select><input type=text name=" +aa+ " size=5 placeholder=\"Carbs\" disabled><br>");
}
document.write("<br><label for=\"answerTot\">Total carbs: </label> <input type=text name=answerTot size=5 disabled></br></br> <div style=\"text-align:center\"> <input type=button value=Calculate onClick=\"calculate()\"></br></br><input type=button value=Reset onClick=\"reset()\"></div>");
</script></body></html>
Hello there and welcome to StackOverflow!
Your code required a bit of rework and questions like that (more like a task than a question) aren't usually very successful around here.
Having said that, I wrote something that will hopefully help you, the nice thing about it being that if you want to add new types of food you'll only need to add them in the array and the js will take care of it.
Careful with the approximation to 1 digit though, you might lose some carbs in the calculation. Also, please check your carbs, see if I haven't modified anything by mistake.
var myArray = [
['Food', 0],
['Banana', 0.1428571429],
['Blackberry', 0.1],
['Blueberry', 0.1418918919],
['Carrots', 0.09836065574],
['Cantaloupe', 0.08],
['Cherry Tomato', 0.05882352941],
['Cucumber', 0.03653846154],
['Green apple', 0.1373626374],
['Honeydew', 0.09],
['Pear', 0.15],
['Raspberry', 0.12],
['Plum', 0.11],
['Strawberry', 0.075],
['Watermelon', 0.075]
];
function reset() {
var inputs = document.getElementById("calculatorForm").getElementsByTagName("input");
for (var i = 0; i < inputs.length; i++) {
inputs[i].value = "";
}
document.getElementById("answerTot").value = "";
}
function calculate() {
var t = 0;
var tt = 0;
var inputs = document.getElementById("calculatorForm").getElementsByTagName("input");
for (var i = 0; i < inputs.length; i++) {
if (inputs[i].disabled == false) {
if (parseInt(inputs[i].value) > 0) {
tt = (parseInt(inputs[i].value) * getValue(inputs[i].previousSibling.value));
t = +t + +tt;
inputs[i].nextSibling.value = tt.toFixed(1);
}
}
}
console.log(t.toFixed(1));
document.getElementById("answerTot").value = (t).toFixed(1)
}
function add() {
document.getElementById("calculatorForm");
var o = document.createElement("option");
var sel = document.createElement("select");
var inp = document.createElement("input");
var close = document.createElement("span");
var entry = document.createElement("div");
var carbs = document.createElement("input");
carbs.disabled = true;
carbs.className = "result";
entry.className = "entry";
close.className = "remove";
close.innerHTML = "Remove";
for (i = 0; i < myArray.length; i++) {
o = document.createElement("option");
o.value = myArray[i][0];
o.innerHTML = myArray[i][0];
sel.appendChild(o);
}
close.addEventListener("click", function() {
this.parentElement.remove();
calculate();
})
entry.appendChild(sel);
entry.appendChild(inp);
entry.appendChild(carbs);
entry.appendChild(close);
document.getElementById("calculatorForm").appendChild(entry);
}
function getValue(food) {
for (var i = 0; i < myArray.length; i++) {
if (myArray[i][0] == food) return myArray[i][1];
}
}
function getIndex(food) {
for (var i = 0; i < myArray.length; i++) {
if (myArray[i][0] == food) return i;
}
}
window.onload = function() {
add();
}
* {
box-sizing: border-box;
}
#container {
width: 200px;
margin: 0 auto;
}
input[type="text"][disabled] {
outline: none;
border: 1px solid gray;
background-color: white;
color: black;
font-weight: bolder;
}
input[type="button"] {}
select {
width: 15%
}
#calculatorForm {
width: 300px;
margin: auto;
text-align: center;
}
#calculatorForm .entry > * {
width: 140px;
height: 20px;
margin: 5px;
}
#calculatorForm .entry > span {
font-size: 11px;
line-height: 20px;
cursor: pointer;
}
#calculatorForm .entry > .result {
width: 240px;
}
.control {
width: 300px;
margin: auto;
text-align: center;
}
.control>label {
font-size: 11px;
width: 290px;
display: block;
margin: auto;
text-align: left;
margin-bottom: -5px;
}
.control>input {
display: block;
width: 290px;
padding: 5px;
margin: 5px auto;
}
<form name="calc" action="post" id="calculatorForm">
</form>
<div style="text-align:center" class="control">
<label for="answerTot">Total carbs </label>
<input type=text id=answerTot size=5 disabled>
<input type=button value="Add Food" onClick="add()">
<input type=button value=Calculate onClick="calculate()">
<input type=button value=Reset onClick="reset()">
</div>
If anyone wants to see the result, this is what I ended up with. I added a couple event listeners and made the weight value a select rather than an input. Thanks again #Paul for the assistance this is exactly what I was trying to accomplish!
<html>
<head>
<meta name = "viewport" content = "initial-scale = 1.0, user-scalable = no">
<title>Carb Calculator</title>
<style>
{
box-sizing: border-box;
}
#container {
width: 200px;
margin: 0 auto;
}
input[type="text"][disabled] {
outline: none;
border: 1px solid gray;
background-color: white;
color: black;
font-weight: bolder;
}
input[type="button"] {}
select {
width: 15%
}
#calculatorForm {
width: 300px;
margin: auto;
text-align: center;
}
#calculatorForm .entry > * {
width: 145px;
height: 20px;
margin: 2px;
}
#calculatorForm .entry > span {
font-size: 11px;
line-height: 20px;
cursor: pointer;
}
#calculatorForm .entry > .result {
width: 50px;
}
.control {
width: 300px;
margin: auto;
text-align: center;
}
.control>label {
font-size: 11px;
width: 290px;
display: block;
margin: auto;
text-align: left;
margin-bottom: -5px;
}
.control>input {
display: block;
width: 290px;
padding: 5px;
margin: 5px auto;
}
</style>
</head>
<body>
<script language="javascript" type="text/javascript">
var myArray = [
['Food', 0],
['Banana', 0.1428571429],
['Blackberry', 0.1],
['Blueberry', 0.1418918919],
['Carrots', 0.09836065574],
['Cantaloupe', 0.08],
['Cherry Tomato', 0.05882352941],
['Cucumber', 0.03653846154],
['Green apple', 0.1373626374],
['Honeydew', 0.09],
['Pear', 0.15],
['Raspberry', 0.12],
['Plum', 0.11],
['Strawberry', 0.075],
['Watermelon', 0.075]
];
function reset() {
var inputs = document.getElementById("calculatorForm").getElementsByClassName("result");
for (var i = 0; i < inputs.length; i++) {
inputs[i].value = 0;
}
document.getElementById("answerTot").value = "";
}
function calculate() {
var t = 0;
var tt = 0;
var inputs = document.getElementById("calculatorForm").getElementsByClassName("result");
for (var i = 0; i < inputs.length; i++) {
if (inputs[i].disabled == false) {
if (parseInt(inputs[i].value) >= 0) {
tt = (parseInt(inputs[i].value) * getValue(inputs[i].previousSibling.value));
t = +t + +tt;
inputs[i].nextSibling.value = tt.toFixed(1);
}
}
}
console.log(t.toFixed(1));
document.getElementById("answerTot").value = (t).toFixed(1)
}
function add() {
document.getElementById("calculatorForm");
var o = document.createElement("option");
var sel = document.createElement("select");
var inpu = document.createElement("select");
var close = document.createElement("span");
var entry = document.createElement("div");
var carbs = document.createElement("input");
carbs.disabled = true;
carbs.className = "result";
inpu.className = "result";
entry.className = "entry";
close.className = "remove";
close.innerHTML = "Remove";
for (i = 0; i < myArray.length; i++) {
o = document.createElement("option");
o.value = myArray[i][0];
o.innerHTML = myArray[i][0];
sel.appendChild(o);
}
for (var j=0; j<301; j++){
inpu.options[inpu.options.length]=new Option(j,j)
}
close.addEventListener("click", function() {
this.parentElement.remove();
calculate();
})
inpu.addEventListener("change", function() {
calculate();
})
sel.addEventListener("change", function() {
calculate();
})
entry.appendChild(sel);
entry.appendChild(inpu);
entry.appendChild(carbs);
entry.appendChild(close);
document.getElementById("calculatorForm").appendChild(entry);
}
function getValue(food) {
for (var i = 0; i < myArray.length; i++) {
if (myArray[i][0] == food) return myArray[i][1];
}
}
function getIndex(food) {
for (var i = 0; i < myArray.length; i++) {
if (myArray[i][0] == food) return i;
}
}
window.onload = function() {
add();
}
</script>
<form name="calc" action="post" id="calculatorForm"></form>
<div style="text-align:center" class="control"><br>
<label for="answerTot">Total carbs </label>
<input type=text id=answerTot size=5 disabled>
<input type=button value="Add Food" onClick="add()">
<input type=button value=Calculate onClick="calculate()">
<input type=button value=Reset onClick="reset()">
</div>
</body></html>
Here is a small application I came up with that could also suit your needs.
It consists of five files that should be located in the same directory.
Best of health for your child!
Features include:
adding and removing of new food types
adding and removing food to/from multiple lists
changing, increasing and decreasing count of fooditems in lists
manage (add,remove,rename) multiple lists
save and load data in your browser locally
export and import data through a text area to save your data externally.
layout support for both big screen and handheld devices
myCarbCalculator.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>Carb Calculator</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<link rel="stylesheet" href="myCarbCalculator.css"></link>
<link rel="stylesheet" media="screen" href="myCarbCalculator-Screen.css"></link>
<link rel="stylesheet" media="handheld" href="myCarbCalculator-Handheld.css"></link>
<script type="text/javascript" src="myCarbCalculator.js"></script>
</head>
<body onload="init();">
<div id="root">
<div id="header">
<button id="btnSaveSettings">save Settings</button>
<button id="btnLoadSettings">load Settings</button>
<button id="btnImportSettings">import Settings</button>
<button id="btnExportSettings">export Settings</button>
<button id="btnResetSettings">reset Settings</button>
</div>
<div id="center">
<div id="content-main">
<div id="c_foodSelector">
<label for="selFoodSelector">select a type of food</label>
<select id="selFoodSelector"></select>
<button id="btnAddSelectedFoodToList">Add Food to List</button>
</div>
<div id="c_foodTable">
<div id="c_foodTableOptions">
<input id="p_foodTableName" value="Your List of Food Items"/>
<button id="btnRenameFoodTable">rename List</button>
<button id="btnNewFoodTable">new List</button>
</div>
<table id="foodTable" class="fill-width"></table>
</div>
</div>
<div id="content-additional">
<div id="c_results">
<label for="inputResultCarbs">Carbs Total</label>
<input id="inputResultCarbs" readonly="readonly"/>
</div/>
<div id="c_foodTableSelection">
<table id="foodTableSelection" class="fill-width"></table>
</div>
<div id="c_output">
<h3>Import/Export</h3>
<textarea id="p_output" class="fill-width"></textarea>
</div/>
</div>
</div>
<div id="footer">
<label for="p_newFoodName">Food Name</label><input id="p_newFoodName"/>
<label for="p_newFoodCarbs">Carb Value</label><input id="p_newFoodCarbs"/>
<button id="btnNewFood">add a new type of food</button>
<button id="btnDeleteSelectedFood">delete Selected type of food</button>
</div>
</div>
</body>
</html>
myCarbCalculator.js
var SAVEID = 'carbCalculatorSettings';
function MyCarbCalculator(){
var self = this;
this.settings = null;
this.initSettings = function(){
self.settings = {
'activeFoodList' : 'default',
'foodData' : {},
'foodList' : {
'default' : {
'label' : 'Your List of Food Items',
'list' : {},
'dateCreated' : '',
'dateChanged' : '',
'notes' : 'This is the default Food List'
}
}
};
};
this.clearContents = function(element){
while (element.firstChild) {
element.removeChild(element.firstChild);
}
};
this.formatDate = function(timestamp){
if(timestamp != ""){
var date = new Date(timestamp);
var monthNames = [
"January", "February", "March",
"April", "May", "June", "July",
"August", "September", "October",
"November", "December"
];
var day = date.getDate();
var monthIndex = date.getMonth();
var year = date.getFullYear();
var hours = date.getHours();
var minutes = date.getMinutes();
var seconds = date.getSeconds();
return day + ' ' + monthNames[monthIndex] + ' ' + year + ' ' + hours + ':'+ minutes + ':'+ seconds;
}
return "---";
};
//////////////////////////////////////////////////////////////////
// Load and Save Data
//////////////////////////////////////////////////////////////////
this.resetSettings = function(){
self.initSettings();
self.updateView();
};
this.saveSettings = function(){
localStorage.setItem(SAVEID,JSON.stringify(self.settings));
};
this.loadSettings = function(){
var saveData = localStorage.getItem(SAVEID);
if(saveData != null && saveData.length > 0){
self.settings = JSON.parse(localStorage.getItem(SAVEID));
self.updateView();
}
else{
self.initSettings();
}
};
this.importSettings = function(){
localStorage.setItem(SAVEID,document.getElementById('p_output').value);
self.loadSettings();
};
this.exportSettings = function(){
document.getElementById('p_output').value = localStorage.getItem(SAVEID);
};
//////////////////////////////////////////////////////////////////
// Manage Food Data
//////////////////////////////////////////////////////////////////
this.updateView = function(){
self.updateFoodSelector();
self.updateFoodTable();
self.updateFoodTableSelection();
self.updateResult();
};
//////////////////////////////////////////////////////////////////
// Manage Food Data
//////////////////////////////////////////////////////////////////
this.newFood = function(){
var name = document.getElementById('p_newFoodName').value;
var carbs = document.getElementById('p_newFoodCarbs').value;
var id = Date.now();
self.settings.foodData[id] = {'name':name,'carbs':carbs};
self.updateFoodSelector();
};
this.removeSelectedFoodData = function(){
var foodSelector = document.getElementById('selFoodSelector');
var foodDataId = foodSelector.options[foodSelector.selectedIndex].value;
delete self.settings.foodData[foodDataId];
self.updateFoodSelector();
}
this.updateFoodSelector = function(){
var foodSelector = document.getElementById('selFoodSelector');
self.clearContents(foodSelector);
for(id in self.settings.foodData){
var food = self.settings.foodData[id];
var item = document.createElement("option");
item.value = id;
item.innerHTML = food.name + " (" + food.carbs + ")";
foodSelector.appendChild(item);
}
};
//////////////////////////////////////////////////////////////////
// Manage current Food Table
//////////////////////////////////////////////////////////////////
this.addSelectedFoodToTable = function(){
var activeFoodListId = self.settings.activeFoodList;
var foodList = self.settings.foodList[activeFoodListId];
var foodSelector = document.getElementById('selFoodSelector');
var selectedFoodId = foodSelector.options[foodSelector.selectedIndex].value;
var foodData = self.settings.foodData[selectedFoodId];
var foodItem = {'name':foodData.name,'carbs':foodData.carbs,'count':1};
foodList.list[Date.now()] = foodItem;
foodList.dateChanged = Date.now();
self.updateView();
};
this.updateFoodCount = function(id,value){
var activeFoodListId = self.settings.activeFoodList;
var foodList = self.settings.foodList[activeFoodListId];
foodList.list[id].count = value;
foodList.dateChanged = Date.now();
self.updateView();
};
this.removeFoodItem = function(id){
var activeFoodListId = self.settings.activeFoodList;
var foodList = self.settings.foodList[activeFoodListId];
delete foodList.list[id];
foodList.dateChanged = Date.now();
self.updateView();
};
this.updateFoodTable = function(){
var activeFoodListId = self.settings.activeFoodList;
var foodList = self.settings.foodList[activeFoodListId];
// update the List Name
var foodTableNameElement = document.getElementById('p_foodTableName');
foodTableNameElement.value = foodList.label;
// update the List itself
var foodTable = document.getElementById('foodTable');
self.clearContents(foodTable);
// create the Table Header
var row = document.createElement("tr");
foodTable.innerHTML =
"<tr><th>Name</th><th>Carbs/unit</th><th></th><th>Count</th><th></th></tr>";
for(id in foodList.list){
// create a table structure
var row = document.createElement("tr");
var elm1 = document.createElement("td");
var elm2 = document.createElement("td");
var elm3 = document.createElement("td");
var elm4 = document.createElement("td");
var elm5 = document.createElement("td");
var elm6 = document.createElement("td");
row.appendChild(elm1);
row.appendChild(elm2);
row.appendChild(elm3);
row.appendChild(elm4);
row.appendChild(elm5);
row.appendChild(elm6);
foodTable.appendChild(row);
// create input fields
var food = foodList.list[id];
var inputFoodId = document.createElement("input");
inputFoodId.id = "food-id-" + id;
inputFoodId.type = "hidden";
inputFoodId.value = id;
var inputFoodName = document.createElement("input");
inputFoodName.id = "food-name-" + id;
inputFoodName.setAttribute("readonly","readonly");
inputFoodName.value = food.name;
var inputFoodCarbs = document.createElement("input");
inputFoodCarbs.id = "food-carbs-" + id;
inputFoodCarbs.setAttribute("readonly","readonly");
inputFoodCarbs.style.width = "3em";
inputFoodCarbs.value = food.carbs;
var inputFoodCount = document.createElement("input");
inputFoodCount.id = "food-count-" + id;
inputFoodCount.setAttribute("data-id",id);
inputFoodCount.style.width = "3em";
inputFoodCount.value = food.count;
inputFoodCount.addEventListener("change",function(event){
var inputFoodCount = event.currentTarget;
var id = inputFoodCount.getAttribute("data-id");
var count = inputFoodCount.value;
self.updateFoodCount(id,count);
});
var btnDeleteFoodItem = document.createElement("button");
btnDeleteFoodItem.innerHTML = "remove";
btnDeleteFoodItem.setAttribute("data-id",id);
btnDeleteFoodItem.addEventListener("click",function(event){
var btnDeleteFoodItem = event.currentTarget;
var id = btnDeleteFoodItem.getAttribute("data-id");
self.removeFoodItem(id);
});
var btnCountUp = document.createElement("button");
btnCountUp.innerHTML = "+";
btnCountUp.setAttribute("data-id",id);
btnCountUp.addEventListener("click",function(event){
var id = event.currentTarget.getAttribute("data-id");
var inputFoodCount = document.getElementById("food-count-"+id);
inputFoodCount.value = ++ inputFoodCount.value;
self.updateFoodCount(id,inputFoodCount.value);
});
var btnCountDown = document.createElement("button");
btnCountDown.innerHTML = "-";
btnCountDown.setAttribute("data-id",id);
btnCountDown.addEventListener("click",function(event){
var id = event.currentTarget.getAttribute("data-id");
var inputFoodCount = document.getElementById("food-count-"+id);
inputFoodCount.value = -- inputFoodCount.value;
self.updateFoodCount(id,inputFoodCount.value);
});
// append input fields to the table row
elm1.appendChild(inputFoodId); // this one is invisible anyway
elm1.appendChild(inputFoodName);
elm2.appendChild(inputFoodCarbs);
elm3.appendChild(btnCountDown);
elm4.appendChild(inputFoodCount);
elm5.appendChild(btnCountUp);
elm6.appendChild(btnDeleteFoodItem);
}
};
//////////////////////////////////////////////////////////////////
// Calculate Results
//////////////////////////////////////////////////////////////////
this.calculateCarbsForList = function(listId){
var foodListData = self.settings.foodList[listId].list;
var total = 0;
for(id in foodListData){
var item = foodListData[id];
total = total + (item.carbs * item.count);
}
return total;
};
this.updateResult = function(){
var activeFoodListId = self.settings.activeFoodList;
var foodList = self.settings.foodList[activeFoodListId];
var inputResultCarbs = document.getElementById("inputResultCarbs");
inputResultCarbs.value = self.calculateCarbsForList(activeFoodListId);
};
//////////////////////////////////////////////////////////////////
// Food Table Handling
//////////////////////////////////////////////////////////////////
this.renameFoodTable = function(){
var activeTableId = self.settings.activeFoodList;
var foodList = self.settings.foodList[activeTableId];
var newName = document.getElementById('p_foodTableName').value;
foodList.label = newName;
foodList.dateChanged = Date.now();
self.updateView();
};
this.newFoodTable = function(){
var newTableName = document.getElementById('p_foodTableName').value;
var date = Date.now();
self.settings.foodList[date] = {
'label' : newTableName,
'list' : {},
'dateCreated' : date,
'dateChanged' : date,
'notes' : ''
}
self.settings.activeFoodList = date;
self.updateView();
};
this.updateFoodTableSelection = function(){
var foodTableSelection = document.getElementById('foodTableSelection');
self.clearContents(foodTableSelection);
var foodTableLists = self.settings.foodList;
foodTableSelection.innerHTML =
"<tr><th>Name</th><th>last Change</th><th>Carbs</th><th></th><th></th></tr>";
for(var tableId in foodTableLists){
var foodTable = foodTableLists[tableId];
var row = document.createElement("tr");
if(tableId == self.settings.activeFoodList){
row.classList.add("active");
}
var cell1 = document.createElement("td");
var cell2 = document.createElement("td");
var cell3 = document.createElement("td");
var cell4 = document.createElement("td");
var cell5 = document.createElement("td");
cell1.innerHTML = foodTable.label;
cell1.style.cursor = "help";
cell1.title = foodTable.notes;
cell2.innerHTML = self.formatDate(foodTable.dateChanged);
cell2.title = "created: " + self.formatDate(foodTable.dateCreated);
cell3.innerHTML = self.calculateCarbsForList(tableId);
var btnSelectFoodTable = document.createElement("button");
if(tableId == self.settings.activeFoodList)btnSelectFoodTable.disabled = 'disabled';
btnSelectFoodTable.innerHTML = "select";
btnSelectFoodTable.setAttribute("data-tableId",tableId);
btnSelectFoodTable.addEventListener("click",function(event){
var button = event.currentTarget;
self.settings.activeFoodList = button.getAttribute("data-tableId");
self.updateView();
});
cell4.appendChild(btnSelectFoodTable);
var btnDeleteFoodTable = document.createElement("button");
if(tableId == 'default')btnDeleteFoodTable.disabled = 'disabled';
btnDeleteFoodTable.innerHTML = "delete";
btnDeleteFoodTable.setAttribute("data-tableId",tableId);
btnDeleteFoodTable.addEventListener("click",function(event){
var button = event.currentTarget;
var tableId = button.getAttribute("data-tableId");
if(self.settings.activeFoodList = tableId){
self.settings.activeFoodList = "default";
};
delete self.settings.foodList[tableId];
self.updateView();
});
cell5.appendChild(btnDeleteFoodTable);
row.appendChild(cell1);
row.appendChild(cell2);
row.appendChild(cell3);
row.appendChild(cell4);
row.appendChild(cell5);
foodTableSelection.appendChild(row);
}
};
//////////////////////////////////////////////////////////////////
// Add global Events
//////////////////////////////////////////////////////////////////
document.getElementById("btnNewFood").addEventListener("click",this.newFood);
document.getElementById("btnSaveSettings").addEventListener("click",this.saveSettings);
document.getElementById("btnLoadSettings").addEventListener("click",this.loadSettings);
document.getElementById("btnResetSettings").addEventListener("click",this.resetSettings);
document.getElementById("btnImportSettings").addEventListener("click",this.importSettings);
document.getElementById("btnExportSettings").addEventListener("click",this.exportSettings);
document.getElementById("btnDeleteSelectedFood").addEventListener("click",this.removeSelectedFoodData);
document.getElementById("btnAddSelectedFoodToList").addEventListener("click",this.addSelectedFoodToTable);
document.getElementById("btnRenameFoodTable").addEventListener("click",this.renameFoodTable);
document.getElementById("btnNewFoodTable").addEventListener("click",this.newFoodTable);
//////////////////////////////////////////////////////////////////
// Initialize the Data on screen
//////////////////////////////////////////////////////////////////
self.loadSettings();
}
function init(){
var carCalculator = new MyCarbCalculator();
}
myCarbCalculator.css
body,html{
height:100%;
}
/* dont show borders on input fields if read only */
input:-moz-read-only {
border : none;
}
input:read-only {
border : none;
}
/* spacing elements out */
th{
text-align:left;
}
label,input,button,select{
white-space:nowrap;
margin-right: 1em;
}
button{
height:2.5em;
}
#c_results,#c_foodSelector,#c_output,#footer,#header{
padding:1em;
}
/* make result stand out */
#c_results #inputResultCarbs{
font-size: 2em;
color: #882222;
width:4em;
}
#c_results label[for="inputResultCarbs"]{
font-size: 1em;
padding-top:1em;
}
.fill-width{
width:100%;
}
table#foodTableSelection > tr.active{
background-color:yellow;
}
myCarbCalculator-Screen.css
#root{
display:flex;
flex-direction:column;
height:100%;
}
#header{
display:flex;
flex-direction:row;
border-bottom: 1px solid black;
}
#footer{
display:flex;
flex-direction.row;
border-top: 1px solid black;
}
#center{
flex: 1 0;
display:flex;
flex-direction:row;
}
#content-main{
flex: 1 0 auto;
display:flex;
flex-direction: column;
}
#c_foodSelector{
border-bottom: 1px solid black;
}
#c_foodTable{
}
#content-additional{
flex: 0 1 30%;
display:flex;
flex-direction: column;
border-left: 1px solid black;
}
#c_results{
flex: 1 0 auto;
border-bottom: 1px solid black;
}
#c_foodTableSelection{
flex: 1 0 auto;
border-bottom: 1px solid black;
}
#c_output{
flex: 0 1 50%;
}
myCarbCalculator-Handheld.css
#root{
display:flex;
flex-direction:column;
height:100%;
}
#header{
display:flex;
flex-direction:column;
border-top: 1px solid black;
order: 3;
}
#footer{
display:flex;
flex-direction:column;
border-top: 1px solid black;
order: 2;
}
#center{
flex: 1 0;
display:flex;
flex-direction:column;
order: 1;
}
#content-main{
display:flex;
flex-direction: column;
}
#c_foodSelector{
display:flex;
flex-direction:column;
border-bottom: 1px solid black;
}
#c_foodTable{
border-bottom: 1px solid black;
}
#content-additional{
display:flex;
flex-direction: column;
}
#c_results{
flex: 1 0 auto;
border-bottom: 1px solid black;
}
#c_foodTableSelection{
flex: 1 0 auto;
border-bottom: 1px solid black;
}
#c_output{
flex: 0 1 50%;
}
/*******************************************
ADDITONAL STYLES ONLY FOR HANDHELD LAYOUT
*******************************************/
/* spacing out vertically */
label,input,button,select{
margin-bottom: 0.5em;
}
input[id^="food-name"]{
width:4em;
}
#header:before,#footer:before{
text-align:center;
font-size:1em;
font-weight:bold;
margin-bottom:0.5em;
}
#header:before{
content:'Options';
}
#footer:before{
content:'Foodtypes';
}
Technical Notes:
I am using pure Javascript and css. Some styles might not be compatible with older browsers like Internet Explorer prior to Edge.
Saving of data is handled through the browsers local storage.
Import and Export is handled through plain text in "Javascript Object Notation" (JSON).
The Application itself is written as a Javascript Class e.g. Function named MyCarbCalculator which is created and initialized through the bodies onload event and an init() function.
With this example application I'm trying to show how to use Javascript in a structured (pseudo object oriented) way and the power and flexibility of event listeners and unnamed functions e.g. the use of functions as parameters.
Also I am using CSS media descriptors to create a flexible layout that can be customized for both handheld devices and big screens. This is mostly done through the "flexbox" style which allows for very fluid layouts and offers great control over the positioning of elements.
In my project I'm using jqPagination plugin. I really like the functionality, but I was wondering if it's possible to customize it in the way that max-page number always appears outside of the input box. Here is my link to the jsfiddle https://jsfiddle.net/webIra7/hqz90Lwj/1/
<div class="some-container">
<div class="loaded-page">First page </div>
<div class="loaded-page">Second page</div>
<div class="loaded-page">Third page</div>
</div>
<div class="gigantic pagination">
‹
<input class="pagenumber" type="text" readonly="readonly" />
›
</div>
You can access to plugin properties like this:
($('.pagination').jqPagination('option', 'max_page'))
Check the fiddle to see it working: https://jsfiddle.net/ivan0013/hqz90Lwj/5/
According to the customization section of the documentation for the jqPagination plugin, you can pass a page_string to the options. The default value is 'Page {current_page} of {max_page}'.
You could change the page_string in the options to be just 'Page {current_page}', then put the max page number in a separate HTML element outside of the pagination element.
See updated fiddle here.
You can calculate the maxPageNumber outside the jqPagination object and set this value to a span element after the next button.
To change the page format string you can use:
page_string: 'Page {current_page}',
Do not copy or include the src code of plugin, you may include it with:
<script src="https://rawgit.com/beneverard/jqPagination/master/js/jquery.jqpagination.min.js"></script>
The snippet:
$(document).ready(function () {
// hide all but the first of our paragraphs
$('.some-container div.loaded-page:not(:first)').hide();
// compute the maxPageNumber
var maxPageNumber = $('.some-container div.loaded-page').length;
// set this value as you wish:
$('#maxPageNumber').text(maxPageNumber);
// initialize the jqPagination
$('.pagination').jqPagination({
max_page: maxPageNumber,
page_string: 'Page {current_page}', // change the string format
paged: function (page) {
// a new 'page' has been requested
// hide all paragraphs
$('.some-container div.loaded-page').hide();
// but show the one we want
$($('.some-container div.loaded-page')[page - 1]).show();
}
});
});
.pagenumber::-ms-clear {
width: 0;
height: 0;
}
.pagination {
display: inline-block;
border-radius: 3px;
}
.pagination a {
display: block;
float: left;
width: 20px;
height: 20px;
outline: none;
border-right: 1px solid #CDCDCD;
border-left: 1px solid #CDCDCD;
color: #555555;
vertical-align: middle;
text-align: center;
text-decoration: none;
font-size: 15px;
font-family: Helvetica, Arial, sans-serif;
/* ATTN: need a better font stack */
background-color: #f3f3f3;
}
.pagination a:hover, .pagination a:focus, .pagination a:active {
background-color: #006699;
color: white;
border: 1px solid #cdcdcd;
}
.pagination a.previous:hover, .pagination a.previous:focus, .pagination a.previous:active, .pagination a.next:hover,
.pagination a.next:focus, .pagination a.next:active, .pagination a.disabled, .pagination a.disabled:hover,
.pagination a.disabled:focus, .pagination a.disabled:active {
background-color: #006699;
color: #A8A8A8;
cursor: default;
color: white;
}
.pagination a:first-child {
border: none;
border-radius: 2px 0 0 2px;
}
.pagination a:last-child {
border: none;
border-radius: 0 2px 2px 0;
}
.pagination input {
float: left;
margin: 0;
padding: 0;
width: 115px;
height: 20px;
outline: none;
border: none;
vertical-align: middle;
text-align: center;
}
/* gigantic class for demo purposes */
.gigantic.pagination {
margin: 0;
}
.gigantic.pagination a {
font-size: 30px;
background-color: #eee;
border-radius: 0;
color: #006699;
float: left;
height: 35px;
width: 35px;
line-height: 30px;
border: solid 1px #ccc;
}
.gigantic.pagination input {
width: 120px;
font-size: 15px;
font-family: Helvetica, Arial, sans-serif;
margin: 0;
padding: 7px 0;
}
/* log element for demo purposes */
.log {
display: none;
background-color: #EDEDED;
height: 300px;
width: 524px;
overflow: auto;
margin-left: 0;
list-style: none;
padding: 10px;
}
.log li {
margin-top: 0;
margin-bottom: 5px;
}
<script src="https://code.jquery.com/jquery-1.12.3.min.js"></script>
<script src="https://rawgit.com/beneverard/jqPagination/master/js/jquery.jqpagination.min.js"></script>
<div class="some-container">
<div class="loaded-page">First page </div>
<div class="loaded-page">Second page</div>
<div class="loaded-page">Third page</div>
</div>
<div class="gigantic pagination">
‹
<input class="pagenumber" type="text" readonly="readonly" />
›
<span id="maxPageNumber" style='margin-top: 1.00em;margin-left:1.25em; display:inline-block;'/>
</div>
HTML:
<div class="some-container">
<div class="loaded-page">First page </div>
<div class="loaded-page">Second page</div>
<div class="loaded-page">Third page</div>
</div>
<div class="gigantic pagination">
‹
<input class="pagenumber" type="text" readonly="readonly" />
›
<input class="maxPageNumber" type="text" readonly="readonly" id="maxPag" />
</div>
JS:
(function(e) {
"use strict";
e.jqPagination = function(t, n) {
var r = this;
r.$el = e(t);
r.el = t;
r.$input = r.$el.find(".pagenumber");
r.$el.data("jqPagination", r);
r.init = function() {
r.options = e.extend({}, e.jqPagination.defaultOptions, n);
r.options.max_page === null && (r.$input.data("max-page") !== undefined ? r.options.max_page = r.$input.data("max-page") : r.options.max_page = 1);
r.$input.data("current-page") !== undefined && r.isNumber(r.$input.data("current-page")) && (r.options.current_page = r.$input.data("current-page"));
r.$input.removeAttr("readonly");
r.updateInput(!0);
r.$input.on("focus.jqPagination mouseup.jqPagination", function(t) {
if (t.type === "focus") {
var n = parseInt(r.options.current_page, 10);
e(this).val(n).select()
}
if (t.type === "mouseup") return !1
});
r.$input.on("blur.jqPagination keydown.jqPagination", function(t) {
var n = e(this),
i = parseInt(r.options.current_page, 10);
if (t.keyCode === 27) {
n.val(i);
n.blur()
}
t.keyCode === 13 && n.blur();
t.type === "blur" && r.setPage(n.val())
});
r.$el.on("click.jqPagination", "a", function(t) {
var n = e(this);
if (n.hasClass("disabled")) return !1;
if (!t.metaKey && !t.ctrlKey) {
t.preventDefault();
r.setPage(n.data("action"))
}
})
};
r.setPage = function(e, t) {
if (e === undefined) return r.options.current_page;
var n = parseInt(r.options.current_page, 10),
i = parseInt(r.options.max_page, 10);
if (isNaN(parseInt(e, 10))) switch (e) {
case "first":
e = 1;
break;
case "prev":
case "previous":
e = n - 1;
break;
case "next":
e = n + 1;
break;
case "last":
e = i
}
e = parseInt(e, 10);
if (isNaN(e) || e < 1 || e > i) {
r.setInputValue(n);
return !1
}
r.options.current_page = e;
r.$input.data("current-page", e);
r.updateInput(t)
};
r.setMaxPage = function(e, t) {
if (e === undefined) return r.options.max_page;
if (!r.isNumber(e)) {
console.error("jqPagination: max_page is not a number");
return !1
}
if (e < r.options.current_page) {
console.error("jqPagination: max_page lower than current_page");
return !1
}
r.options.max_page = e;
r.$input.data("max-page", e);
r.updateInput(t)
};
r.updateInput = function(e) {
var t = parseInt(r.options.current_page, 10);
r.setInputValue(t);
r.setLinks(t);
e !== !0 && r.options.paged(t)
};
r.setInputValue = function(e) {
var t = r.options.page_string,
n = r.options.max_page;
t = t.replace("{current_page}", e).replace("{max_page}", n);
r.$input.val(t);
$("#maxPag").val("of " + n);
};
r.isNumber = function(e) {
return !isNaN(parseFloat(e)) && isFinite(e)
};
r.setLinks = function(e) {
var t = r.options.link_string,
n = parseInt(r.options.current_page, 10),
i = parseInt(r.options.max_page, 10);
if (t !== "") {
var s = n - 1;
s < 1 && (s = 1);
var o = n + 1;
o > i && (o = i);
r.$el.find("a.first").attr("href", t.replace("{page_number}", "1"));
r.$el.find("a.prev, a.previous").attr("href", t.replace("{page_number}", s));
r.$el.find("a.next").attr("href", t.replace("{page_number}", o));
r.$el.find("a.last").attr("href", t.replace("{page_number}", i))
}
r.$el.find("a").removeClass("disabled");
n === i && r.$el.find(".next, .last").addClass("disabled");
n === 1 && r.$el.find(".previous, .first").addClass("disabled")
};
r.callMethod = function(t, n, i) {
switch (t.toLowerCase()) {
case "option":
if (i === undefined && typeof n != "object") return r.options[n];
var s = {
trigger: !0
},
o = !1;
e.isPlainObject(n) && !i ? e.extend(s, n) : s[n] = i;
var u = s.trigger === !1;
s.current_page !== undefined && (o = r.setPage(s.current_page, u));
s.max_page !== undefined && (o = r.setMaxPage(s.max_page, u));
o === !1 && console.error("jqPagination: cannot get / set option " + n);
return o;
case "destroy":
r.$el.off(".jqPagination").find("*").off(".jqPagination");
break;
default:
console.error('jqPagination: method "' + t + '" does not exist');
return !1
}
};
r.init()
};
e.jqPagination.defaultOptions = {
current_page: 1,
link_string: "",
max_page: null,
page_string: "Page {current_page}",
page_string2: "of {max_page}",
paged: function() {}
};
e.fn.jqPagination = function() {
var t = this,
n = e(t),
r = Array.prototype.slice.call(arguments),
i = !1;
if (typeof r[0] == "string") {
r[2] === undefined ? i = n.first().data("jqPagination").callMethod(r[0], r[1]) : n.each(function() {
i = e(this).data("jqPagination").callMethod(r[0], r[1], r[2]);
});
return i
}
t.each(function() {
new e.jqPagination(this, r[0])
})
}
})(jQuery);
if (!console) {
var console = {},
func = function() {
return !1
};
console.log = func;
console.info = func;
console.warn = func;
console.error = func
};
$(document).ready(function() {
// hide all but the first of our paragraphs
$('.some-container div.loaded-page:not(:first)').hide();
$('.pagination').jqPagination({
max_page : $('.some-container div.loaded-page').length,
paged : function(page) {
// a new 'page' has been requested
// hide all paragraphs
$('.some-container div.loaded-page').hide();
// but show the one we want
$($('.some-container div.loaded-page')[page - 1]).show();
}
});
$('.pagination2').jqPagination({
max_page : $('.some-container div.loaded-page').length,
paged : function(page) {
// a new 'page' has been requested
// hide all paragraphs
$('.some-container div.loaded-page').hide();
// but show the one we want
$($('.some-container div.loaded-page')[page - 1]).show();
}
});
});
CSS:
.pagenumber::-ms-clear{
width: 0;
height: 0;
}
.pagination{
display: inline-block;
border-radius: 3px;
}
I include <input class="maxPageNumber" type="text" readonly="readonly" id="maxPag" /> change page_string: "Page {current_page} of {max_page}" to page_string: "Page {current_page}", page_string2: "of {max_page}" and include $("#maxPag").val("of" + n);