Learning to code and having a problem creating arrays from jQuery objects. I would like to give the user the option of adding as many "Favorite Books" as they want to their profile.
The UI is written in jQuery,
<script language="javascript">
function one()
{
var i = 1;
my.innerHTML = my.innerHTML +"<br><input type='text' name='title'+i[] >"
var n = 1;
[
div.innerHTML = div.innerHTML +"<br><input type='text' name='author'+n[] >"
]
}
</script>
I have tried:
var obj = $('input');
var arr = $.makeArray(obj);
I was hoping it was actually that easy but the output is:
<div id="div">
<br>
<input type="text" +n[]="" name="author">
<br>
<input type="text" +n[]="" name="author">
<br>
<input type="text" +n[]="" name="author">
</div>
I have tried option number two which I found here yet gave me the same output:
var author = new Array();
//get all the authors
$('.auth input').each(function (i)
{
var author= $(this).val();
if(author!= '')
{
author[author] = author;
alert(author.length);
}
});
and same results. I was hoping for results like this:
<div id="div">
<br>
<input type="text" name="author[0]">
<br>
<input type="text" name="author[1]">
<br>
<input type="text" name="author[2]">
</div>
so I can parse out to a PHP array.
Maybe:
<script language="javascript">
var i = 0;
function one(){
$('#my').append("<br><input type='text' name='title["+i+"]'>");
$('#div').append("<br><input type='text' name='author["+i+"]'>");
i++;
}
</script>
Related
I have two text type inputs. I want to convert them into one textbox(Lowercase with dash) while typing just like below.
<input type="text" name="first">
<input type="text" name="last">
I want combine this two text box into another textbox
Example: Nikhil Patel to nikhil-patel
I am trying to combine below inputs but can't.
function conv(){
var title, author;
title = document.getElementById("title").value;
author = document.getElementById("author").value;
/*converting to LowerCase*/
title = String.toLowerCase(title);
author = String.toLowerCase(author);
var out = title + "-" + author;
document.getElementById("output").value = output;
}
<div class="form-group">
<label>Title :</label>
<input class="form-control" type="text" name="title" id="title" />
</div>
<div class="form-group">
<label>Author :</label>
<input class="form-control" type="text" name="author" id="author" />
</div>
<div class="form-group">
<label>Output :</label>
<input class="form-control" type="text" name="output" id="output"/>
</div>
Output is not printing automatically
Try This if you want like this...
var input = $('[name="first"],[name="last"]'),
input1 = $('[name="first"]'),
input2 = $('[name="last"]'),
input3 = $('[name="final"]');
input.change(function () {
input3.val(input1.val() + ' - ' + input2.val());
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<input type="text" name="first" id="1" value="">
<input type="text" name="last" id="2" value="">
<input type="text" name="final" id="3" value="" readonly>
<HTML>
<HEAD>
<SCRIPT>
function conv(){
var first, second;
first = document.getElementById("first").value;
second = document.getElementById("second").value;
/*converting to LowerCase*/
first = String.toLowerCase(first);
second = String.toLowerCase(second);
var out = first + "-" + second;
document.getElementById("out").value = out;
}
</SCRIPT>
</HEAD>
<BODY>
<input type="text" name = "first" id="first" onkeyup = 'conv()'/>
<input type="text" name = "second" id ="second" onkeyup = 'conv()'/>
<input type="text" name = "out" id="out"/>
</BODY>
</HTML>
this is just a sample with 3 text boxes where
first two boxes will be for input
and third will auto populate using the javascript
I hope it'll help you. All is did was to add extra id's.
I have a button that creates 4 input elements inside a DIV after click:
<div id="content"></div>
<button class="check">Check</button>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script>
var num = 4;
$(".check").click(function(){
for(i=0; i<num;i++){
$("#content").append("<input id='input"+i+"' type='text'><br>");
}
});
</script>
But the problem is I want input id number continues the enumeration (like this example) instead of return to zero:
<div id="content">
<input id="input0" type="text">
<input id="input1" type="text">
<input id="input2" type="text">
<input id="input3" type="text">
<input id="input4" type="text">
<input id="input5" type="text">
<input id="input6" type="text">
<input id="input7" type="text">
...and continues
</div>
How can I fix it?
You can check the id of the last input. Here I am calculating start and end of for loop based on the total number of elements in #container.
var num = 4;
$(".check").click(function() {
var start = $("#content input").length;
var end = start + num;
for (i = start; i < end; i++) {
var id = 'input' + i;
$("#content").append("<input id='"+id+"' type='text' value='"+id+"'><br>");
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="content"></div>
<button class="check">Check</button>
PS: Here input value is just to demonstrate the id setting to input.
You need some kind of global variable here, or use that simple one:
var getID = (function () {
var id = 0;
return function () { return ++id; }
})();
So whenever you call getID() the »internal« id will be incremented, so each call will yield an new ID.
$(".check").click(function() {
for(var i = 0; i < 4; i++) {
$('<input type="text">') //create a new input
.attr('id', 'input' + $('#content input').length) //id based on number of inputs
.appendTo('#content'); //append it to the container
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="content"></div>
<button class="check">Check</button>
If you're asking how to have a stack of elements to begin with, and then continue enumeration from there, you simply need to set a variable to the ID of the latest element.
All you need to do is count the number of elements. This can be done with a combination of .querySelectorAll() and .length.
Then simply have your loop start at this new value instead of 0.
This can be seen in the following:
var total_desired = 20;
var start = document.querySelectorAll('#content > input').length;
console.log(start + " elements to start with");
$(".check").click(function() {
for (i = start; i < total_desired; i++) {
$("#content").append("<input id='input" + i + "' type='text'><br>");
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button class="check">Check</button>
<div id="content">
<input id="input0" type="text">
<input id="input1" type="text">
<input id="input2" type="text">
<input id="input3" type="text">
<input id="input4" type="text">
<input id="input5" type="text">
<input id="input6" type="text">
<input id="input7" type="text"> ...and continues
</div>
Having said that, it's unlikely that you actually need simultaneous ID <input> elements, and you may benefit from classes instead.
You can create this object:
var MyId = {
a: 0,
toString() {
return this.a++;
}
}
And concatenate it into the string. Automatically will increase the counter.
<div id="content"></div>
<button class="check">Check</button>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script>
var GetID = {
a: 0,
toString() {
return this.a++;
}
}
var num = 4;
$(".check").click(function(){
for(i=0; i<num;i++){
$("#content").append("<input id='input"+GetID+"' type='text'><br>");
}
});
</script>
Let us say I have an HTML form, with two textboxes, I want to add the two numbers in the two textboxes and display the result in a paragraph. How can I do that?
Change paragraph according to textbox is what I can't find!
Very simple:
document.getElementById('sum').onsubmit = add;
function add(e) {
e.preventDefault();
var num1 = document.getElementById('num1').value;
var num2 = document.getElementById('num2').value;
var result = 'Result: ' + String(parseInt(num1) + parseInt(num2));
var p = document.getElementById('result');
p.innerHTML = result;
}
<form id="sum">
<label for="num1">First number:</label>
<br />
<input type="text" id="num1" />
<br />
<label for="num1">Second number:</label>
<br />
<input type="text" id="num2" />
<br />
<input type="submit" value="Add" />
</form>
<p id="result">Result:</p>
In the html we have a form with 3 inputs, 2 are type text and one is type submit. and also a paragraph.
In the javascript we assign to the form's onsumbit event the function add(), in the function we prevent the default so the form wont refresh the page, then we get the 2 values that were inputed, create a string that would contain the sum of those values and set the paragraph's innerHTML to it.
Create a calculator function and then you can fire it on keyup or you can assign it to a button if you'd like.
function calcTotal(){
var inputs = document.getElementsByTagName('input'),
result = 0;
for(var i=0;i<inputs.length;i++){
if(parseInt(inputs[i].value))
result += parseInt(inputs[i].value);
}
document.getElementById('total').innerHTML = 'Total: ' + result;
}
<form>
<input onkeyup="calcTotal()" type="text" />
<input onkeyup="calcTotal()" type="text" />
</form>
<p id="total"></p>
follow bellow JS code:
<html>
<head>
<title>Sum Two Number</title>
<script language="javascript">
function addNumbers()
{
var val1 = parseInt(document.getElementById("value1").value);
var val2 = parseInt(document.getElementById("value2").value);
if(val1 !== "" && val2 !== "") {
var result = val1 + val2;
document.getElementById('result').innerHTML = result;
}
}
</script>
</head>
<body>
value1 = <input type="text" id="value1" name="value1" value="0" onkeyup="javascript:addNumbers()"/>
value2 = <input type="text" id="value2" name="value2" value="0" onkeyup="javascript:addNumbers()"/>
<p>Answer = <span id="result"></span></p>
</body>
</html>
In this example, you have a form with 2 input. When you press on a button, the value of those 2 input is added inside a paragraph.
Hope this help.
function addInputContentToParagraph() {
var txtValue1 = document.getElementById('textbox1').value;
var txtValue2 = document.getElementById('textbox2').value;
document.getElementById('para').innerHTML = txtValue1 + ' ' + txtValue2;
}
a {
cursor:pointer;
border:1px solid #333;
padding:4px;
margin:10px;
display:inline-block;
}
<form id="myForm" name="myForm">
<input type="text" name="textbox1" id="textbox1" value="1">
<input type="text" name="textbox2" id="textbox2" value="2">
</form>
<a onclick="addInputContentToParagraph();">Add Input Values to Paragraph</a>
<p id="para"></p>
sir
i have 7 text boxes .1st two take values from user and display the multiplication result on 3rd text box when it clicked.4th and 5th textboxes also take values and display the multiplication result in 6th text box when it clicked.now 7th textbox will display the addition result when it clicked.7th textbox takes the values from 3rd and 6th textbox.
my problem is that i can not do the addition and cant display the result in 7th text box in html and jscript.plz help me.....i am attached the code...
<html>
<script>
function getText1(){
var in1=document.getElementById('in1').value;
var in2=document.getElementById('in2').value;
var tot1=parseInt(in1)*parseInt(in2);
document.getElementById('tot1').value=tot1;
}
function getText2(){
var in1=document.getElementById('in3').value;
var in2=document.getElementById('in4').value;
var tot2=parseInt(in1)*parseInt(in2);
document.getElementById('tot2').value=tot2;
}
function gt1(){
var in1=document.getElementById('tot1').value;
var in2=document.getElementById('tot2').value;
var gt1=parseInt(in1)+parseInt(in2);
document.getElementById('gt').value = gt1;
</script>
<form>
<input type="text"id="in1"/>
<input type="text" id="in2"/>
<input type="text" onclick="getText1()" id="tot1"/>
<br>
<input type="text"id="in3"/>
<input type="text" id="in4"/>
<input type="text" onclick="getText2()" id="tot2"/>
<br>
<input type="text" onclick="gt1()" id="gt1"/>
</form>
</html>
<html>
<script>
function getText1(){
var in1=document.getElementById('in1').value;
var in2=document.getElementById('in2').value;
var tot1=parseInt(in1)*parseInt(in2);
document.getElementById('tot1').value=tot1;
}
function getText2(){
var in1=document.getElementById('in3').value;
var in2=document.getElementById('in4').value;
var tot2=parseInt(in1)*parseInt(in2);
document.getElementById('tot2').value=tot2;
}
function gt(){
var in1=document.getElementById('tot1').value;
var in2=document.getElementById('tot2').value;
var gt1=parseInt(in1)+parseInt(in2);
document.getElementById('gt1').value = gt1;
}
</script>
<form>
<input type="text"id="in1"/>
<input type="text" id="in2"/>
<input type="text" onclick="getText1()" id="tot1"/>
<br>
<input type="text"id="in3"/>
<input type="text" id="in4"/>
<input type="text" onclick="getText2()" id="tot2"/>
<br>
<input type="text" onclick="gt()" id="gt1"/>
</form>
</html>
use this code it is working. and compare with own code. thanks..
There are several problem
1). Element id is one line is incorrect. It should be:
document.getElementById('gt1').value = gt1;
2). result variable is undefined. It should be:
if (!isNaN(gt1))
3). onclick="gt1()" will not work (because there is id with the same name gt1). Use, for example:
function getText3() { ... }
and
<input type="text" onclick="getText3()" id="gt1"/>
Fiddle.
Update. Ok, I didn't notice that you want multiplication, but somewhy had written + in getText1() and getText2() functions. Then you should also replace these two + with *:
Multiplication fiddle.
You dont have element with id 'gt'.
Change last line of code to this:
document.getElementById('gt1').value = gt1;
You have not defined 'result' variable
and in 'gt1()' :
document.getElementById('gt').value = gt1;
1- There is no 'gt' element in the page
2- 'gt1' should renamed to 'result'
and at the end code will be:
<script language="javascript" type="text/javascript">
function getText1() {
var in1 = document.getElementById('in1').value;
var in2 = document.getElementById('in2').value;
var tot1 = parseInt(in1) + parseInt(in2);
document.getElementById('tot1').value = tot1;
}
function getText2() {
var in1 = document.getElementById('in3').value;
var in2 = document.getElementById('in4').value;
var tot2 = parseInt(in1) + parseInt(in2);
document.getElementById('tot2').value = tot2;
}
function gt1() {
var in1 = document.getElementById('tot1').value;
var in2 = document.getElementById('tot2').value;
var result = parseInt(in1) + parseInt(in2);
if (!isNaN(result)) {
document.getElementById('gt1').value = result;
}
//document.getElementById('gt1').value=gt1;
}
</script>
this is work properly.
Check the below code.
<script >
function getext3(){
txt1 = document.getElementById("text1").value;
txt2 = document.getElementById("text2").value;
document.getElementById("text3").value = parseInt(txt1)*parseInt(txt2);
}
function getext6(){
txt1 = document.getElementById("text4").value;
txt2 = document.getElementById("text5").value;
document.getElementById("text6").value = parseInt(txt1)*parseInt(txt2);
}
function getext7(){
txt1 = document.getElementById("text3").value;
txt2 = document.getElementById("text6").value;
document.getElementById("text7").value = parseInt(txt1)+parseInt(txt2);
}
</script>
Text1 : <input type="text" id="text1" value="5"> <br/>
Text2 : <input type="text" id="text2" value="2"> <br/>
Text3 : <input type="text" id="text3" value="" onclick="getext3()"> <br/>
Text4 : <input type="text" id="text4" value="7"> <br/>
Text5 : <input type="text" id="text5" value="10"> <br/>
Text6 : <input type="text" id="text6" value="" onclick="getext6()"> <br/>
Text7 : <input type="text" id="text7" value="" onclick="getext7()"> <br/>
I need a basic loop to sum two fields. I just get it to work for one group, but the others remain the same. I know I need some kind of array to solve this, but I can't work it out. (Notice, they are 50 groups in the original project, but I just added 2) Here is the code:
HTML
<label>Value 1:</label><input type="text" name="value1[]" id="txtval1"><br>
<label>Value 2:</label><input type="text" name="value2[]" id="txtval2"><br>
<label>Total:</label><input type="text" name="total[]" id="txttotal"><br><br>
<label>Value 1:</label><input type="text" name="value1[]" id="txtval1"><br>
<label>Value 2:</label><input type="text" name="value2[]" id="txtval2"><br>
<label>Total:</label><input type="text" name="total[]" id="txttotal">
<br><br>
<button type="button" onclick="myFunction(); return false;">Get Total</button>
Javascript
<script type="text/javascript">
function myFunction()
{
var val1 = document.getElementById('txtval1').value;
var val2 = document.getElementById('txtval2').value;
var total = document.getElementById('txttotal');
var sum = parseInt(val1) + parseInt(val2);
if (val1.value!='' && val2.value!=''){
total.value='';
total.value = total.value + sum;
}
}
</script>
I don't know why this doen't work on my fiddle, but does in my local machine. Here is the Fiddle
I think that giving the same ID to two elements It is mistake.
You have to give a different ID for each element and pass them on for.
Look at this fiddle:
http://jsfiddle.net/83m6e/
EDIT: I changed the fiddle for option2:
http://jsfiddle.net/83m6e/3/
You also can put each segment into a div and then do not change the names.
You can not add up to arrays in order to add up their elements. You must do it one by one. Try this code:
<html>
<head>
<script type="text/javascript">
function myFunction()
{
var count = 3;
var val1, val2, sum;
for (var i = 0; i < count; i++)
{
val1 = document.getElementById('txtval1_' + i).value;
val2 = document.getElementById('txtval2_' + i).value;
sum = parseInt(val1) + parseInt(val2);
document.getElementById('txttotal_' + i).value = sum;
}
}
</script>
</head>
<body>
<label>Value 1:</label><input type="text" id="txtval1_0"><br>
<label>Value 2:</label><input type="text" id="txtval2_0"><br>
<label>Total:</label><input type="text" id="txttotal_0"><br><br>
<label>Value 1:</label><input type="text" id="txtval1_1"><br>
<label>Value 2:</label><input type="text" id="txtval2_1"><br>
<label>Total:</label><input type="text" id="txttotal_1"><br><br>
<label>Value 1:</label><input type="text" id="txtval1_2"><br>
<label>Value 2:</label><input type="text" id="txtval2_2"><br>
<label>Total:</label><input type="text" id="txttotal_2"><br><br>
<button type="button" onclick="myFunction(); return false;">Get Total</button>
</body>
</html>