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How to determine one year from now in Javascript
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Isn't this hilarious? To get a date one year from now in javascript one needs to write: new Date(new Date().setFullYear(new Date().getFullYear() + 1))
– LucasM
Apr 14 '17 at 13:36
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Do we need semicolon at the end? [duplicate]
I missed semicolons in some of the places in my JavaScript, but its not throwing error in any of the browsers. Is the ; at the end needed?
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How do I empty an array in JavaScript?
...th to 0. Some have argued that this may not work in all implementations of JavaScript, but it turns out that this is not the case. It also works when using "strict mode" in ECMAScript 5 because the length property of an array is a read/write property.
Method 3 (as suggested by Anthony)
A.splice(0,...
Mimicking sets in JavaScript?
I'm working in JavaScript. I'd like to store a list of unique , unordered string values, with the following properties:
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How to check if array element exists or not in javascript?
...d can check whether an index exists." developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
– Loren
Nov 27 '19 at 16:19
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How do I check if file exists in jQuery or pure JavaScript?
How do I check if a file on my server exists in jQuery or pure JavaScript?
17 Answers
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list every font a user's browser can display
Is there a way in javascript to obtain the names of all fonts (or font-families) that the browser can show? (I want to give the user a dropdown with a list of all available fonts, and allow the user to choose a font.)
I'd prefer not to have to hardcode this list ahead of time or send it down from t...
How can I create a two dimensional array in JavaScript?
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Javascript only has 1-dimensional arrays, but you can build arrays of arrays, as others pointed out.
The following function can be used to construct a 2-d array of fixed dimensions:
function Create2DArray(rows) {
var arr ...
jQuery: Return data after ajax call success [duplicate]
... explained how promises work in jQuery in my answers to those questions:
JavaScript function that returns AJAX call data
jQuery jqXHR - cancel chained calls, trigger error chain
If you could explain why do you want to return the data and what do you want to do with it later, then I might be able...
Const in JavaScript: when to use it and is it necessary?
I've recently come across the const keyword in JavaScript. From what I can tell, it is used to create immutable variables , and I've tested to ensure that it cannot be redefined (in Node.js):
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