I am currently working on javascript. In this code I have a table and a textbox. When I enter data in the textbox it should show the particular value that I typed but it doesn't search any data from the table. How do I search data in the table?I have provided the link below.
http://jsfiddle.net/SuRWn/
<table name="tablecheck" class="Data" id="results" >
<thead>
<tr ><th> </th>
<th> </th>
<th><center> <b>COURSE CODE</b></center></th>
<th><center>COURSE NAME</center></th></tr>
</thead>
<tbody>
<tr id="rowUpdate" class="TableHeaderFooter">
<td>
<center> <input type="text" name="input" value="course" ></center>
<center> <input type="text" name="input" value="course1" ></center>
<center> <input type="text" name="input" value="course2" ></center>
</td>
<td>
<center> <input type="text" name="input" value="subject" ></center>
<center> <input type="text" name="input" value="subject1" ></center>
<center> <input type="text" name="input" value="subject2" ></center>
</td>
</tr>
</tbody>
</table >
<form action="#" method="get" onSubmit="return false;">
<label for="q">Search Here:</label><input type="text" size="30" name="q" id="q" value="" onKeyUp="doSearch();" />
</form>
<script>
function doSearch() {
var q = document.getElementById("q");
var v = q.value.toLowerCase();
var rows = document.getElementsByTagName("tr");
var on = 0;
for (var i = 0; i < rows.length; i++) {
var fullname = rows[i].getElementsByTagName("td");
fullname = fullname[0].innerHTML.toLowerCase();
if (fullname) {
if (v.length == 0 || (v.length < 3 && fullname.indexOf(v) == 0) || (v.length >= 3 && fullname.indexOf(v) > -1)) {
rows[i].style.display = "";
on++;
} else {
rows[i].style.display = "none";
}
}
}
}
I would like to highlight a few things for this code:
In your code, the loop starts from 0, as table has first row as header row, it will not contain any "tr" elements. Hence your function is not working.
If we start loop from 1, you need to go through the input element to search the value. Existing approach wont work.
In case of loop starting from 1, your fullname variable will look like this:
May be you will have to modify your comparison logic by fetching the value of input fields.
Ok, here is a working version, but your algorithm is not perfect.
You can debug and fix the logic errors:
First problem:
onKeyUp="javascript:doSearch();"
JSFiddle
There was many semantical errors compare with yours, still not perfect:
(lass then 3 letters problem, and cases when it finds something)
If you type "course", it finds, but still keeps all visible (you have to fix it, it's easy.)
If you type less then 3 letters, do nothing, don't hide all.
function doSearch() {
var q = document.getElementById("q");
var v = q.value.toLowerCase();
var rows = document.getElementsByTagName("tr");
var on = 0;
for (var i = 0; i < rows.length; i++) {
var fullname = rows[i].getElementsByTagName("td");
if (fullname.length > 0) {
fullname = fullname[0].innerHTML.toLowerCase();
if (fullname) {
if (v.length == 0 || (v.length < 3 && fullname.indexOf(v) == 0) || (v.length >= 3 && fullname.indexOf(v) > -1)) {
rows[i].style.display = "";
on++;
} else {
rows[i].style.display = "none";
}
}
}
}
}
Is your html the way you wanted? You seem to want to create a table with rows, and then filter those rows based on the users input. The way your html is now, there is only one row.
After you fix that, I would recommend using jquery. Here is a fiddle to get you started: http://jsfiddle.net/SuRWn/11/
$(function () {
var q = $('#q'),
boxes = $('td input');
$('#q').on('keyup', function (e) {
var qterm = q.val();
if (qterm.length < 3) {
boxes.show();
} else {
boxes.each(function(i,o) {
var box = $(this);
box.toggle(box.val().indexOf(qterm) > -1);
});
}
});
});
edit: note that the fiddle is filtering your input boxes and now the rows (since there are no rows to filter)
Related
Hey guys looking for some assistance with changing the color of text based on value. If the value is zero or negative I want it to be red, and if the value is + I want it to be green. Below is just a little bit of code from the full html but I think these are the key parts. Here is a JSFiddle As you can see the table is dynamic. As you input data into the starting amount it will automatically calculate it for the ending amount. The starting amount adds to the bill amount which produces the total amount number. I am also not sure if the event "onchange" is correct. Thank you for your input and advise in advanced.
<p><b>Starting Amount: $ <input id="money" type="number" onkeyup="calc()"></b></p>
<table>
<tr>
<th>Bill Ammount</th>
</tr>
<tr>
<td><input type="number" class="billAmt" id="billAmt" onkeyup="calc()"> </td>
</tr>
</table>
<input type="hidden" id="total" name="total" value="0">
<p><b>Ending Amount: $ <span id="totalAmt" onchange="colorChange(this)">0</span></b></p>
<script type="text/Javascript">
var myElement = document.getElementById('totalAmt');
function colorChange() {
if('myElement' > 0) {
totalAmt.style.color = 'green';
} else {
totalAmt.style.color = 'red';
}
}
function calc() {
var money = parseInt(document.querySelector('#money').value) || 0;
var bills = document.querySelectorAll('table tr input.billAmt') ;
var billTotal = 0;
for (i = 0; i < bills.length; i++) {
billTotal += parseInt(bills[i].value) || 0;
}
totalAmt.innerHTML = money + billTotal;
}
</script>
You can reach the desired result using just one function. Instead of checking the DOM element's innerHTML or textContext to get the amount, just refer to the variables holding it.
var myElement = document.getElementById('totalAmt');
function calc() {
var money = parseInt(document.querySelector('#money').value) || 0;
var bills = document.querySelectorAll('table tr input.billAmt');
var billTotal = 0;
for (i = 0; i < bills.length; i++) {
billTotal += parseInt(bills[i].value) || 0;
}
totalAmt.innerHTML = money + billTotal;
myElement.style.color = money + billTotal <= 0 ? 'red' : 'green';
}
<p><b>Starting Amount: $ <input id="money" type="number" onkeyup="calc()"></b></p>
<table>
<tr>
<th>Bill Ammount</th>
</tr>
<tr>
<td><input type="number" class="billAmt" id="billAmt" onkeyup="calc()"></td>
</tr>
</table>
<input type="hidden" id="total" name="total" value="0">
<p><b>Ending Amount: $ <span id="totalAmt">0</span></b></p>
use myElement.innerHTML instead of myElement in the if condition and invoke the changeColor function at last of calc
var myElement = document.getElementById('totalAmt');
function colorChange() {
if (myElement.innerHTML <= 0) {
totalAmt.style.color = 'red';
} else {
totalAmt.style.color = 'green';
}
}
function calc() {
var money = parseInt(document.querySelector('#money').value) || 0;
var bills = document.querySelectorAll('table tr input.billAmt');
var billTotal = 0;
for (i = 0; i < bills.length; i++) {
billTotal += parseInt(bills[i].value) || 0;
}
totalAmt.innerHTML = money + billTotal;
colorChange();
}
<p><b>Starting Amount: $ <input id="money" type="number" onkeyup="calc()"></b></p>
<table>
<tr>
<th>Bill Ammount</th>
</tr>
<tr>
<td><input type="number" class="billAmt" id="billAmt" onkeyup="calc()"></td>
</tr>
</table>
<input type="hidden" id="total" name="total" value="0">
<p><b>Ending Amount: $ <span id="totalAmt">0</span></b></p>
A couple issues with your original code:
1 - you were checking if the string myElement was greater than zero, instead of the innerHTML of the element you selected.
2 - using innerHTML() to change the contents of an element doesn't fire an onchange event. In my code, I call your colorChange function at the end of the calc function, so if you decide to add another field to it (tax or something), it will be called after the total is calculated.
function colorChange() {
var myElement = document.getElementById('totalAmt');
if (myElement.innerHTML > 0) {
totalAmt.style.color = 'green';
} else {
totalAmt.style.color = 'red';
}
}
function calc() {
var money = parseInt(document.querySelector('#money').value) || 0;
var bills = document.querySelectorAll('table tr input.billAmt');
var billTotal = 0;
for (i = 0; i < bills.length; i++) {
billTotal += parseInt(bills[i].value) || 0;
}
totalAmt.innerHTML = money + billTotal;
colorChange()
}
<p><b>Starting Amount: $ <input id="money" type="number" onkeyup="calc()"></b></p>
<table>
<tr>
<th>Bill Ammount</th>
</tr>
<tr>
<td><input type="number" class="billAmt" id="billAmt" onkeyup="calc()"> </td>
</tr>
</table>
<input type="hidden" id="total" name="total" value="0">
<p><b>Ending Amount: $ <span id="totalAmt">0</span></b></p>
How to check value in input using loop for with onchange using javascript ?
first, When user fill char. It's will be show Your Price must be a number.
And if user fill number less than 1.5 It's will show Your Price must be at least $1.50 USD.
and click Add more link to add input.
I try my code , but not work, how can i do that ?
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<form onsubmit="return checkform(this);">
Add more
<div id="p_scents_price">
<p>
<label>
<input type="text" class="price" id="price0" size="20" name="price[]" onchange="myFunction0()"/><p id="demo0"></p>
</label>
</p>
</div>
<input type="submit" name="submit" value="OK">
</form>
<script>
var list = document.querySelectorAll(".price");
for (z = 0; z < list.length; ++z) {
function myFunction'+z+'() {
var x = document.getElementById("price'+z+'").value;
var y = isNaN(x);
if(y === true)
{
document.getElementById("demo'+z+'").innerHTML = "Your Price must be a number.";
}
else
{
if(x < 1.5)
{
document.getElementById("demo'+z+'").innerHTML = "Your Price must be at least $1.50 USD.";
}
else
{
document.getElementById("demo'+z+'").innerHTML = "";
}
}
}
}
}
</script>
<script>
$(function() {
var scntDiv = $('#p_scents_price');
var i = 1;
$('#addScnt_price').live('click', function() {
$('<p><label><input type="text" class="price" id="price'+i+'" size="20" name="price[]" onchange="myFunction'+i+'()"/>Remove<p id="demo'+i+'"></p></label></p>').appendTo(scntDiv);
i++;
return false;
});
$('#remScnt_price').live('click', function() {
if( i > 2 ) {
$(this).parents('p').remove();
}
return false;
});
});
</script>
I have five form fields that will initially NOT be pre-populated with any values.
If a user fills out one of the fields, the next time they visit the form that field will be pre-populated with the value from the previous visit.
Here's what I'm trying: I'd like to create a loop that iterates through the fields. It will always check to see if there are empty fields. After finding 2 empty fields, the loop will stop and only show those 2 empty fields, while the other fields are hidden.
Here's what I have so far...I just can't figure how to stop after iterating through two fields,
HTML:
<form action="">
<input id="first" type="text" value="" />
<input id="second" type="text" value="" />
<input id="third" type="text" value="" />
<input id="fourth" type="text" value="" />
<input id="fifth" type="text" value="" />
</form>
JS:
$(document).ready(function() {
$('input').hide();
var firstValue = $('input[id="first"]').val(),
secondValue = $('input[id="second"]').val(),
thirdValue = $('input[id="third"]').val(),
fourthValue = $('input[id="fourth"]').val(),
fifthValue = $('input[id="fifth"]').val();
var firstField = $('input[id="first"]'),
secondField = $('input[id="second"]'),
thirdField = $('input[id="third"]'),
fourthField = $('input[id="fourth"]'),
fifthField = $('input[id="fifth"]');
var formValues = [firstValue, secondValue, thirdValue, fourthValue, fifthValue];
var fieldIds = [firstField, secondField, thirdField, fourthField, fifthField];
for (var i = 0; i < fieldIds.length; i++) {
for (var i = 0; i < formValues.length; i++) {
if ( formValues[i] === '' ) {
fieldIds[i].show();
return false;
}
}
}
});
Take all input fields, take the first two empty fields and show them; finally, take the complement of that to hide the rest:
var $inputFields = $('form input:text'),
$emptyFields = $inputFields
.filter(function() { return this.value == ''; })
.slice(0, 2)
.show();
$inputFields
.not($emptyFields)
.hide();
Demo
$(document).ready(function() {
$('input').hide().each( function(){
var index=0; //initilialize the counter
if( $(this).val().length ){ //check for input's length
if(index < 2) {
$(this).show();
index=index+1 //or index++ if you like
}
else {
break;
}
}
}
)};
If you want to include select and textarea fields in your eligible input population, use $(':input').hide().each(...). If you have multiple forms on your page, you would want to include that in your selector, too: $('#intended_form').find(':input').hide().each(...).
http://api.jquery.com/each/
I think that Jack provides the best answer, but this should work too. here, i use a second counter j and break the loop when j % 2 == 0, so at this time its found two empty fields. this is known as a modulus or the modulo operator.
$(document).ready(function() {
$('input').hide();
var firstValue = $('input[id="first"]').val(),
secondValue = $('input[id="second"]').val(),
thirdValue = $('input[id="third"]').val(),
fourthValue = $('input[id="fourth"]').val(),
fifthValue = $('input[id="fifth"]').val();
var firstField = $('input[id="first"]'),
secondField = $('input[id="second"]'),
thirdField = $('input[id="third"]'),
fourthField = $('input[id="fourth"]'),
fifthField = $('input[id="fifth"]');
var formValues = [firstValue, secondValue, thirdValue, fourthValue, fifthValue];
var fieldIds = [firstField, secondField, thirdField, fourthField, fifthField];
var j = 0;
for (var i = 1; i < fieldIds.length; i++) {
if ( formValues[i] === '' ) {
fieldIds[i].show();
j++;//we found an empty field
if (j % 2 == 0)
{
break;
}
}
}
});
There is something in this javascript or html which is is allowing the checkboxes to be ticked but for not even half a second. (I need the checks to stay there!) I also need the additems function to work
var computer = new Array();
computer[0] = "10001, Nvidia Geforce GTX 690, 1200";
computer[1] = "10002, Raedon HD 7950, 450";
computer[2] = "20001, Ivy Bridge i7 3770, 400";
computer[3] = "20002, Ivy Bridge i7 3770k, 420";
computer[4] = "20003, Sandy Bridge i7 2700k, 340";
computer[5] = "20004, Bulldozer FX-8150, 270";
computer[6] = "30001, Antec eleven-hundred, 120";
computer[7] = "30002, Coolermaster HAF-X, 170";
computer[8] = "30003, Antec three-hundred, 50";
computer[9] = "30004, Corsair 550D, 160";
computer[10] = "40001, INTEL-ASrock fatal1ty Z77 Professional Motherboard, 250";
computer[11] = "40002, INTEL-ASrock Z77 extreme9 Motherboard, 350";
computer[12] = "40003, AMD-ASrock fatal1ty 990FX Professional Motherboard, 240";
computer[13] = "40004, AMD-ASUS Sabertooth 990FX Motherboard, 260";
Check all checkboxes function
function check() {
var leftSide = document.getElementById('table_container_left');
var inputs = leftSide.getElementsByTagName('input');
for (x=0; x<=inputs.length-1; x++) {
if(inputs[x].type == 'text') {
inputs[x].value = 1;
} else {
inputs[x].checked = true;
}
}
}
Uncheck all checkboxes function
function uncheck() {
var leftSide = document.getElementById('table_container_left');
var inputs = leftSide.getElementsByTagName('input');
for (x=0; x<=inputs.length-1; x++) {
if(inputs[x].type == 'text') {
inputs[x].value = 0;
} else {
inputs[x].checked = false;
}
}
}
add checked items to cart
function addItems() {
var leftSide = document.getElementById('table_container_left');
var rightSide = document.getElementById('table_container_right');
var inputs = leftSide.getElementByTagName('input');
var totalPrice = 0;
var basketTable = "<h3>My Basket:</h3><table><thead><tr><th>Item</th><th>Quantity</th><th>price</th><th>Sub-total</th></tr></thead><tbody>";
for (x=0; x<=inputs.length-1; x++) {
if(inputs[x].type == 'checkbox' && inputs[x].checked == true) {
var quantity = ParseFloat(inputs[x+1).value);
var itemName = computer[x/2].split(",")[1];
var itemPrice = parseFloat(computer[x/2].split(",")[2])
var itemTotal = parseFloat(quantity*itemPrice);
totalPrice += itemTotal;
basketTable += "<tr><td>"+itemName+"</td><td>"+quantity+"</td><td>$"+itemPrice+"</td><td>$"+itemTotal+"</td></tr>";
}
}
basketTable +=" <tr><td> colspan='3'><b>Total:</b></td><td><b>$"+totalPrice+"</b></td></tr></tbody><table>";
rightsSide.innerHTML = basketTable;
}
update quantity to 1 when item is checked
function updateQty(id) {
var targetRow = document.getElementById(id);
var qtyBox = targetRow.getElementsByTagName('input')[1];
if (qtyBox.value == 0) {
qtyBox.value = 1;
} else {
qtyBox.value = 0;
}
}
Here's the HTML as requested
<form name="myForm" action="index.html" method="post">
<div id="table_container_left">
<button onclick="check();">Select All</button>
<button onclick="uncheck();">Unselect All</button>
<button onclick="addItems();">Add Items</button>
<table>
<thead>
<th><u>Item Code</u></th>
<th><u>Item</u></th>
<th><u>Qty</u></th>
<th><u>Price</u></th>
</thead>
<tbody>
<script type="text/javascript">
for(x=0; x<=computer.length-1; x++) {
document.write("<tr id='"+x+"'><td><label><input type='checkbox' name='item' value='"+x+"' onclick='updateQty('"+x+"');'/> "+computer[x].split(",")[0]+"</label></td><td>"+computer[x].split (",")[1]+"</td><td> <input name='qty' id='qty' type='textbox' value='0' onchange='qtychange ('"+x+"');'/></td><td>$"+computer[x].split(",")[2]+"</td></tr>");
}
</script>
</tbody>
</table>
</div>
<div id="table_container_right">
<table id="shoppingBasket">
<input name='selectAll' type='button' value='Select All' onclick="itemSelected();"/>
<input name='clearAll' type='button' value='Clear All' onclick=""/>
<input name='removeItem(s)' type='button' value='Remove Item(s)' />
<input name='sortItemCode' type='button' value='Sort by Item Code' disabled='disabled' />
<input name='sortPrice' type='button' value='Sort by Price' disabled='disabled' />
</tbody>
</table>
</div>
</div>
</form>
Your JS syntax is way off, this is what it should look like
function addItems(field) {
for (i = 0; i <= field.length-1; i++)
{
if (field[i].checked == true)
{
if (computer[i]!=null) {
selected[i] = computer[i];
}
}
}
}
Half of your if statements are missing parentheses, that's some basic wrongfulness.
I don't know what and where should any of the variables be, but here is my best shot:
function addItems(field) {
var i;
for (i = 0; i < field.length; i++) {
if (field[i].checked === true) {
if (computer[i] !== null) {
selected[i] = computer[i];
}
}
}
}
You are using i = 0 rather than var i = 0, which will introduce a global variable. This could be a problem if you're writing similar code elsewhere.
Your if-statements are not statements at all. They look like pseudo-code. You're also comparing with = rather than ==, which will cause an assignment rather than a condition, even if you fix up your syntax.
You are not properly indenting your code, which will make you much more prone to introduce new errors.
These are the general issues I notice immediately. Of course, heaps of things could be wrong with this code. fields might not be an array, computer and selected might not match the size of fields, etc.
If you have any specific problem, please describe that, and we may be able to address it.
I've looked through many posts to no avail. I have the following in a simple form where one of the products changes based on the number of checkboxes checked. It works in every browser except IE. What am I doing wrong?
<body>
<script type="text/javascript">
function check(){
"use strict";
var count = 0, x=0, checkboxes=document.signup.getElementsByClassName("styled");
for(;x<checkboxes.length; x++){
if(checkboxes[x].checked){
count++;
}
}
if(count<3) {
document.getElementById("variable").value = "1";
}
else if (count == 3){
document.getElementById("variable").value = "74";
}
else if (count == 4){
document.getElementById("variable").value = "75";
}
else if (count == 5){
document.getElementById("variable").value = "76";
}
}
</script>
<form name="signup" id="signup" method="post" action="/subscribers/signup.php">
<input type="checkbox" id="variable" name="product_id[]" value="" class="styled"></input>product 1 - variable</div>
<input type="checkbox" id="same" name="product_id[]" value="3" class="styled"></input>product 2
<input type="checkbox" id="same2" name="product_id[]" value="2" class="styled"></input>product 3
<input type="checkbox" id="same3" name="product_id[]" value="4" class="styled"></input><div class="check-title">product 4
<input type="checkbox" id="same4" name="product_id[]" value="44" class="styled"></input><div class="check-title">product 5
Continue</td></tr>
</form>
</body>
All versions of IE prior to IE9 do not support getElementsByClassName(). You will need to use some sort of substitute.
Instead of this piece of your code:
checkboxes = document.signup.getElementsByClassName("styled");
I would suggest using this:
checkboxes = document.getElementById("signup").getElementsByTagName("input")
getElementsByTagName() is widely support in all versions of IE. This will obviously get all input tags, but only the checkboxes will have checked set so you should be OK.
If you need to filter by class, then you could do the whole thing this way:
function check() {
"use strict";
// initialize checkbox count to 0
var count = 0, item;
// get all input tags in the form
var inputs = document.getElementById("signup").getElementsByTagName("input");
// loop through all input tags in the form
for (var i = 0; i < inputs.length; i++) {
// get this one into the local variable item
item = inputs[i];
// if this input tag has the right classname and is checked, increment the count
if ((item.className.indexOf("styled") != -1) && item.checked) {
count++;
}
}
// get object for result
var obj = document.getElementById("variable");
// check count and set result based on the count
if(count < 3) {
obj.value = "1";
} else if (count == 3) {
obj.value = "74";
} else if (count == 4) {
obj.value = "75";
} else if (count == 5) {
obj.value = "76";
}
}
IE doesnt have method getElementsByClassName... you can try to define it:
if(document.getElementsByClassName == undefined) {
document.getElementsByClassName = function(cl) {
var retnode = [];
var myclass = new RegExp('\\b'+cl+'\\b');
var elem = this.getElementsByTagName('*');
for (var i = 0; i < elem.length; i++) {
var classes = elem[i].className;
if (myclass.test(classes)) {
retnode.push(elem[i]);
}
}
return retnode;
}
};