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Base64 encoding and decoding in client-side Javascript

... Some browsers such as Firefox, Chrome, Safari, Opera and IE10+ can handle Base64 natively. Take a look at this Stackoverflow question. It's using btoa() and atob() functions. For server-side JavaScript (Node), you can use Buffers to decode. If you are going for a cross-browser solut...
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How do browsers pause/change Javascript when tab or window is not active?

... +200 Test One I have written a test specifically for this purpose: Frame Rate Distribution: setInterval vs requestAnimationFrame Note: T...
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Bash empty array expansion with `set -u`

... 20 The only safe idiom is ${arr[@]+"${arr[@]}"} This is already the recommendation in ikegami's an...
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Is 1.0 a valid output from std::generate_canonical?

...o and one, without 1 , i.e. they are numbers from the half-open interval [0,1). The documention on cppreference.com of std::generate_canonical confirms this. ...
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grant remote access of MySQL database from any IP address

... edited Jan 17 '13 at 13:10 tckmn 50k2121 gold badges9595 silver badges140140 bronze badges answered Dec...
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typecast string to integer - Postgres

...lesced field such as, for example:- SELECT CAST(coalesce(<column>, '0') AS integer) as new_field from <table> where CAST(coalesce(<column>, '0') AS integer) >= 10; share | im...
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What does “Auto packing the repository for optimum performance” mean?

...s git gc --auto. If there are enough loose objects (by default, at least 6700), it will then invoke git repack -d -l to pack them. If there are too many separate packs, it will also repack them into one. A pack is a delta-compressed single file, containing a large number of objects. It's more effic...
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How do I use a file grep comparison inside a bash if/else statement?

... 205 From grep --help, but also see man grep: Exit status is 0 if any line was selected, 1 other...
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How to trim leading and trailing white spaces of a string?

... Denys SéguretDenys Séguret 321k6969 gold badges680680 silver badges668668 bronze badges 2 ...
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How do I select elements of an array given condition?

... answered Jun 13 '10 at 0:50 jfsjfs 326k132132 gold badges817817 silver badges14381438 bronze badges ...