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What's the meaning of “=>” (an arrow formed from equals & greater than) in JavaScript?
... introduced in ECMAScript 6.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/arrow_functions
For historical purposes (if the wiki page changes later), it is:
An arrow function expression has a shorter syntax compared to function expressions and lexically binds the this value....
How to calculate date difference in JavaScript?
...
use Moment.js for all your JavaScript related date-time calculation
Answer to your question is:
var a = moment([2007, 0, 29]);
var b = moment([2007, 0, 28]);
a.diff(b) // 86400000
Complete details can be found here
...
javascript node.js next()
....new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f5384526%2fjavascript-node-js-next%23new-answer', 'question_page');
}
);
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Nam...
How to get index of object by its property in JavaScript?
For example, I have:
19 Answers
19
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Determine whether an array contains a value [duplicate]
... contain value.
See also How do I check if an array includes an object in JavaScript?
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How to remove the hash from window.location (URL) with JavaScript without page refresh?
I have URL like: http://example.com#something , how do I remove #something , without causing the page to refresh?
16 An...
how to add script src inside a View when using Layout
I want to include a javascript reference like:
3 Answers
3
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Does JSON syntax allow duplicate keys in an object?
...esn't say anything about duplicated names (keys).
However, RFC 8259 "The JavaScript Object Notation (JSON) Data Interchange Format" says:
The names within an object SHOULD be unique.
In this context SHOULD must be understood as specified in BCP 14:
SHOULD This word, or the adjective "REC...
How do I fit an image (img) inside a div and keep the aspect ratio?
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You will need some JavaScript to prevent cropping if you don't know the dimension of the image at the time you're writing the css.
HTML & JavaScript
<div id="container">
<img src="something.jpg" alt="" />
</div>
<...
Detect if an input has text in it using CSS — on a page I am visiting and do not control?
..., is not the same as the node's value property (Changed by the user or DOM javascript, and submitted as form data).
Unless you care only about the initial state, you must use a userscript or Greasemonkey script. Fortunately this is not hard. The following script will work in Chrome, or Firefox wi...