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Rails: around_* callbacks

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How does one use rescue in Ruby without the begin and end block

...ock on its own line) like rescue TypeError; rescue NameError -- or you can comma-separate the exception classes, e.g. rescue TypeError, NameError – chemturion Apr 15 at 5:07 a...
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What's the difference between MemoryCache.Add and MemoryCache.Set?

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if arguments is equal to this string, define a variable like this string

.... Bash officially gets my vote for beeing the most outdated yet still used command language. Syntax is just so non intuitive it hurts. Really no place for it in 2016+. @Systemd authors: can you please make "building a Linux shell that doesn't suck" your next project? I'll throw money at you. ...
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Chrome browser reload options new feature

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click or change event on radio using jquery

...ase use $('input[type=radio]') instead (see "additional notes": api.jquery.com/radio-selector) – jemmons Dec 24 '13 at 14:31 add a comment  |  ...
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How do I check out a specific version of a submodule using 'git submodule'?

How would I go about adding a Git submodule for a specific tag or commit? 2 Answers 2 ...
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To find whether a column exists in data frame or not

...!\n"); }. Thanks! -- Oh, I may have found the answer myself: stackoverflow.com/questions/21770912/…. – Sander W. van der Laan Nov 30 '16 at 9:38 ...
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Preserve line endings

...tion is made—as is the case for MS-DOS, Windows, Cygwin—text files are composed of lines separated by a carriage return and a line feed character, and sed does not see the ending CR. When this option is specified, sed will open input files in binary mode, thus not requesting this special process...
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Do we still need end slashes in HTML5?

...s so they do not need an end tag. Void elements area, base, br, col, command, embed, hr, img, input, keygen, link, meta, param, source, track, wbr ... Void elements only have a start tag; end tags must not be specified for void elements. W3C | WHATWG That being said it's not strict p...