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Why split the tag when writing it with document.write()?
Why do some sites (or advertisers that give clients javascript code) employ a technique of splitting the <script> and/or </script> tags up within document.write() calls?
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How to change the indentation width in emacs javascript mode
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js-indent-level can be used in the default javascript-mode, which is included by default starting in emacs 23.2.
(setq js-indent-level 2)
should do what you're looking for. If you're using an older version of emacs, you may be in java-mode. I think this mode resp...
Traverse all the Nodes of a JSON Object Tree with JavaScript
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A JSON object is simply a Javascript object. That's actually what JSON stands for: JavaScript Object Notation. So you'd traverse a JSON object however you'd choose to "traverse" a Javascript object in general.
In ES2017 you would do:
Object.entrie...
Is JavaScript's “new” keyword considered harmful?
...rue, mostly because I've used Prototype, Scriptaculous and other excellent JavaScript libraries, and everyone of them used the new keyword.
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Check if element exists in jQuery [duplicate]
...eed to put # before element id:
$('#elemId').length
---^
With vanilla JavaScript, you don't need the hash (#) e.g. document.getElementById('id_here') , however when using jQuery, you do need to put hash to target elements based on id just like CSS.
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Is it possible to use JavaScript to change the meta-tags of the page?
If I put a div in the head and display:none, than use JavaScript to display it, will this work?
17 Answers
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jQuery: Count number of list elements?
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Count number of list elements
alert($("#mylist > li").length);
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Why does Javascript's regex.exec() not always return the same value? [duplicate]
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A JavaScript RegExp object is stateful.
When the regex is global, if you call a method on the same regex object, it will start from the index past the end of the last match.
When no more matches are found, the index is reset ...
How to make an anchor tag refer to nothing?
... just do the same thing as above and then use something like the following JavaScript:
$('#fake-link-1').click(function() {
/* put your code here */
});
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Unpacking array into separate variables in JavaScript
...e the spread operator "...".
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_operator
let xAndY = [42, 1337];
let f = function(x, y) { return x + y; };
f(...xAndY);
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