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Twitter Bootstrap alert message close and open again
...e jQuery's .hide() method instead.
The fix-it-quick method:
Using inline javascript to hide the element onclick like this:
<div class="alert" style="display: none">
<a class="close" onclick="$('.alert').hide()">×</a>
<strong>Warning!</strong> Best check y...
Is JavaScript guaranteed to be single-threaded?
JavaScript is known to be single-threaded in all modern browser implementations, but is that specified in any standard or is it just by tradition? Is it totally safe to assume that JavaScript is always single-threaded?
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How to set time delay in javascript
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There are two (mostly used) types of timer function in javascript setTimeout and setInterval (other)
Both these methods have same signature. They take a call back function and delay time as parameter.
setTimeout executes only once after the delay whereas setInterval keeps on c...
best way to get the key of a key/value javascript object
... values, use the new Object.entries() developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
– Kzqai
Jun 7 '19 at 16:35
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JavaScript equivalent of PHP’s die
Is there something like "die" in JavaScript? I've tried with "break", but doesn't work :)
14 Answers
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Javascript infamous Loop issue? [duplicate]
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Quoting myself for an explanation of the first example:
JavaScript's scopes are function-level, not block-level, and creating a closure just means that the enclosing scope gets added to the lexical environment of the enclosed function.
After the loop terminates, the function-level...
How to find event listeners on a DOM node when debugging or from the JavaScript code?
... @John: thanks for the comment. You have an example of "real JavaScript" to fetch listeners previously added via addEventListener?
– Crescent Fresh
Apr 25 '12 at 1:23
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Pass a JavaScript function as parameter
...mething I will add to this is that this feature alone - being able to pass JavaScript functions as arguments or variables or the like - is the feature that makes JavaScript so powerful and so great to code in.
– TheHansinator
Dec 9 '15 at 22:16
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Check image width and height before upload with Javascript
...taURL(fileUpload.files[0]);
reader.onload = function (e) {
//Initiate the JavaScript Image object.
var image = new Image();
//Set the Base64 string return from FileReader as source.
image.src = e.target.result;
//Validate the File Height and Width.
image.onload = function () {
var height = this...
Constructors in JavaScript objects
Can JavaScript classes/objects have constructors? How are they created?
19 Answers
19
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