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Parse JSON String into a Particular Object Prototype in JavaScript
I know how to parse a JSON String and turn it into a JavaScript Object.
You can use JSON.parse() in modern browsers (and IE9+).
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Detect IE version (prior to v9) in JavaScript
... CSS to make style exceptions, or, if you require, you can add some simple JavaScript:
(function ($) {
"use strict";
// Detecting IE
var oldIE;
if ($('html').is('.lt-ie7, .lt-ie8, .lt-ie9')) {
oldIE = true;
}
if (oldIE) {
// Here's your JS for IE..
} el...
Javascript calculate the day of the year (1 - 366)
How do I use javascript to calculate the day of the year, from 1 - 366? For example:
22 Answers
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Catch browser's “zoom” event in JavaScript
Is it possible to detect, using JavaScript, when the user changes the zoom in a page?
I simply want to catch a "zoom" event and respond to it (similar to window.onresize event).
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Shortest way to print current year in a website
...he copyright date hard coded in the footer. I want to replace it with some JavaScript that will automatically update each year.
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Why does the JavaScript need to start with “;”?
I have recently noticed that a lot of JavaScript files on the Web start with a ; immediately following the comment section.
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Javascript Equivalent to C# LINQ Select
... maleNames = people
.Where(p => p.Sex == "M")
.Select(p => p.Name)
Javascript:
// replace where with $.grep
// select with $.map
var maleNames = $.grep(people, function (p) { return p.Sex == 'M'; })
.map(function (p) { return p.Name; });
...
JavaScript chop/slice/trim off last character in string
...
You can use the substring method of JavaScript string objects:
s = s.substring(0, s.length - 4)
It unconditionally removes the last four characters from string s.
However, if you want to conditionally remove the last four characters, only if they are exactl...
Javascript library for human-friendly relative date formatting [closed]
...d in Node. It's also probably the most popular and famous date library for JavaScript.
It supports timeago, formatting, parsing, querying, manipulating, i18n, etc.
Timeago (relative time) for dates in the past is done with moment().fromNow(). For example, to display January 1, 2019 in the timeago ...
Why is my variable unaltered after I modify it inside of a function? - Asynchronous code reference
...cute while the synchronous code stack is executing. This is the meaning of JavaScript being single-threaded.
More specifically, when the JS engine is idle -- not executing a stack of (a)synchronous code -- it will poll for events that may have triggered asynchronous callbacks (e.g. expired timeout,...