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Grep characters before and after match?

... 3 characters before and 4 characters after $> echo "some123_string_and_another" | grep -o -P '.{0,3}string.{0,4}' 23_string_and share | ...
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How do I best silence a warning about unused variables?

...tion is more convenient, although less cleaner. – cbuchart Jul 17 '14 at 6:57 I think simpler is better, commenting ou...
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Why does AngularJS include an empty option in select?

...efined in the specification at http://docs.angularjs.org/api/ng.directive:select , I still get an empty option as the first child of select element. ...
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Why are Where and Select outperforming just Select?

... Select iterates once over the entire set and, for each item, performs a conditional branch (checking for validity) and a + operation. Where+Select creates an iterator that skips invalid elements (doesn't yield them), perform...
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How can you integrate a custom file browser/uploader with CKEditor?

...your callback function. Let's say you put it into $callback. When someone selects a file, run this JavaScript to inform CKEditor which file was selected: window.opener.CKEDITOR.tools.callFunction(<?php echo $callback; ?>,url) Where "url" is the URL of the file they picked. An optional thir...
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PHP function to get the subdomain of a URL

...rk in almost all cases, be aware that domains names might have more than 6 chars, like pvt.k12.ma.us, health.vn or even k12.ak.us. Also, domains names may be use Chinese or Russian character set so the regex part [a-z\.]{2,6} would not match them. Check out here to have example domains name: publics...
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How to disable text selection using jQuery?

Does jQuery or jQuery-UI have any functionality to disable text selection for given document elements? 13 Answers ...
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How do I determine which iOS SDK I have?

... The simplest why I found is to run this command line: sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer OR, if you have multiple XCode versions: sudo xcode-select -switch /Applications/Xcode<version_number>.app/Contents/Developer fastlane isn't able to success...
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Best way to unselect a in jQuery?

What is the best way, using jQuery, to elegantly unselect the option? 15 Answers 15 ...
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ReSharper - force curly braces around single line

...f-else" statement" to "Use braces for multiline" After saving the changes, select a scope to reformat (could be a code selection, file, folder, project, solution - anything you want). Choose ReSharper > Tools > Cleanup Code. Profit. Remember that Code Cleanup does numerous things and they're...