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What does ~~ (“double tilde”) do in Javascript?

...umbers. Math.trunc(13.37) // 13 Math.trunc(42.84) // 42 Math.trunc(0.123) // 0 Math.trunc(-0.123) // -0 Math.trunc("-1.123")// -1 Math.trunc(NaN) // NaN Math.trunc("foo") // NaN Math.trunc() // NaN The polyfill: function trunc(x) { return x < 0 ? Math.ceil(x) : Math....
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How to go about formatting 1200 to 1.2k in java

..., 999, 1_000, -5_821, 10_500, -101_800, 2_000_000, -7_800_000, 92_150_000, 123_200_000, 9_999_999, 999_999_999_999_999_999L, 1_230_000_000_000_000L, Long.MIN_VALUE, Long.MAX_VALUE}; String[] expected = {"0", "5", "999", "1k", "-5.8k", "10k", "-101k", "2M", "-7.8M", "92M", "123M", "9.9M", "999P", "...
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How to properly URL encode a string in PHP?

...le: $dataString = "https://www.google.pl/search?q=PHP is **great**!&id=123&css=#kolo&email=me@liszka.com)"; $dataStringUrlEncodedRFC1738 = UrlEncoder::encode($dataString, UrlEncoder::STANDARD_RFC1738); $dataStringUrlEncodedRFC3986 = UrlEncoder::encode($dataString, UrlEncoder::STANDARD_R...
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Update a record without first querying?

...teStoreCommand ("UPDATE items SET itemstatus = 'some status' WHERE id = 123 "); For performance reasons, you may want to pass in variables instead of a single hard coded SQL string. This will allow SQL Server to cache the query and reuse with parameters. Example: dataEntity.ExecuteStoreComma...
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How to check if a string contains only digits in Java [duplicate]

... all be "true" System.out.println("1".matches(regex)); System.out.println("12345".matches(regex)); System.out.println("123456789".matches(regex)); // negative test cases, should all be "false" System.out.println("".matches(regex)); System.out.println("foo".matches(regex)); System.out.println("aa123...
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RegEx to extract all matches from string using RegExp.exec

...s: var re = /\s*([^[:]+):\"([^"]+)"/g; var s = '[description:"aoeu" uuid:"123sth"]'; var m; do { m = re.exec(s); if (m) { console.log(m[1], m[2]); } } while (m); Try it with this JSFiddle: https://jsfiddle.net/7yS2V/ ...
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How to send a header using a HTTP request through a curl call?

...move multi- ple headers. Example: curl --header "X-MyHeader: 123" www.google.com You can see the request that curl sent by adding the -v option. share | improve this answer ...
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What should be in my .gitignore for an Android Studio project?

...ited Nov 28 '15 at 21:12 hichris123 9,5151212 gold badges5050 silver badges6666 bronze badges answered Jan 10 '14 at 16:23 ...
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Unix command to find lines common in two files

...)-release Copyright (C) 2007 Free Software Foundation, Inc. $ cat > abc 123 567 132 $ cat > def 132 777 321 So the files abc and def have one line in common, the one with "132". Using comm on unsorted files: $ comm abc def 123 132 567 132 777 321 $ comm -12 abc def # No output! ...
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How to remove EXIF data without recompressing the JPEG?

...e is doing other transformations with the file. Also note that "-thumbnail 123x456" is ALMOST equivalent to "-strip -resize 123x456". – Denilson Sá Maia Apr 17 '10 at 2:08 17 ...