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“var” or no “var” in JavaScript's “for-in” loop?
... following.
function f (){
for (i=0; i<5; i++);
}
var i = 2;
f ();
alert (i); //i == 5. i should be 2
If you write var i in the for loop the alert shows 2.
JavaScript Scoping and Hoisting
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JS: iterating over result of getElementsByClassName using Array.forEach
...html>
<head>
<meta charset="UTF-8">
<script>
function findTheOddOnes()
{
var theOddOnes = document.getElementsByClassName("odd");
for(var i=0; i<theOddOnes.length; i++)
{
...
How do I declare a namespace in JavaScript?
How do I create a namespace in JavaScript so that my objects and functions aren't overwritten by other same-named objects and functions? I've used the following:
...
Get cursor position (in characters) within a text Input field
...ry the following code with verified result-
<html>
<head>
<script>
function f1(el) {
var val = el.value;
alert(val.slice(0, el.selectionStart).length);
}
</script>
</head>
<body>
<input type=text id=t1 value=abcd>
<button onclick="f1(docu...
jquery-ui-dialog - How to hook into dialog close event
...ng code:
$('div#popup_content').on('dialogclose', function(event) {
alert('closed');
});
Obviously I can replace the alert with whatever I need to do.
Edit: As of Jquery 1.7, the bind() has become on()
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How to get the body's content of an iframe in Javascript?
...
The exact question is how to do it with pure JavaScript not with jQuery.
But I always use the solution that can be found in jQuery's source code.
It's just one line of native JavaScript.
For me it's the best, easy readable and even afaik the shortest way to get the iframe...
How does facebook, gmail send the real time notification?
...ty interesting.
A common method of doing such notifications is to poll a script on the server (using AJAX) on a given interval (perhaps every few seconds), to check if something has happened. However, this can be pretty network intensive, and you often make pointless requests, because nothing has ...
Print content of JavaScript object? [duplicate]
Typically if we just use alert(object); it will show as [object Object] . How to print all the content parameters of an object in JavaScript?
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JavaScript: Get image dimensions
...ta("http://www.google.hr/images/srpr/logo3w.png").done(function(test){
alert(test.w + ' ' + test.h);
});
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How to create an object property from a variable value in JavaScript? [duplicate]
...ike so:
var myObj = new Object;
var a = 'string1';
myObj[a] = 'whatever';
alert(myObj.string1)
(alerts "whatever")
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