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How to check if function exists in JavaScript?
...ames, because that statement actually throws an undefined exception in the JavaScript. I tried it.
– Mike Perrenoud
Jun 19 '13 at 13:42
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Convert seconds to HH-MM-SS with JavaScript?
How can I convert seconds to an HH-MM-SS string using JavaScript?
34 Answers
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How to open a Bootstrap modal window using jQuery?
...nch modal</button>
In this particular case you don't need to write javascript.
You can see more here: http://getbootstrap.com/2.3.2/javascript.html#modals
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How do you serve a file for download with AngularJS or Javascript?
...offered for download as a .txt file. Is this possible using AngularJS or Javascript?
11 Answers
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How do I prevent site scraping? [closed]
... eg. Selenium or PhantomJS, which open your website in a real browser, run JavaScript, AJAX, and so on, and then get the desired text from the webpage, usually by:
Getting the HTML from the browser after your page has been loaded and JavaScript has run, and then using a HTML parser to extract the ...
Regex using javascript to return just numbers
... a string like "something12" or "something102", how would I use a regex in javascript to return just the number parts?
12 A...
Why avoid increment (“++”) and decrement (“--”) operators in JavaScript?
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Agree, but it's not only JavaScript related
– Tobias
Feb 4 '13 at 13:37
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Positive Number to Negative Number in JavaScript?
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To get a negative version of a number in JavaScript you can always use the ~ bitwise operator.
For example, if you have a = 1000 and you need to convert it to a negative, you could do the following:
a = ~a + 1;
Which would result in a being -1000.
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pretty-print JSON using JavaScript
...ect. JSON is always a string. It's just a string-based representation of a Javascript object.
– Clonkex
Jan 3 '18 at 2:53
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What does ~~ (“double tilde”) do in Javascript?
...1111111111110101012
as a signed (two's complement) 32-bit binary number. (JavaScript ignores what is after the decimal point.) Inverting the bits gives:
NOT -4310 = 000000000000000000000000001010102 = 4210
Inverting again gives:
NOT 4210 = 111111111111111111111111110101012 = -4310
This differs ...