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Test if something is not undefined in JavaScript

...answered Jul 14 '13 at 1:34 André LuizAndré Luiz 17311 silver badge77 bronze badges ...
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Vertical (rotated) text in HTML table

...) By the way, convert it to C# and you can let it run on mono for Linux or Mac or Solaris. – Stefan Steiger Sep 2 '13 at 13:56 add a comment  |  ...
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It is more efficient to use if-return-return or if-else-return?

... answered Feb 8 '12 at 10:25 Frédéric HamidiFrédéric Hamidi 232k3737 gold badges445445 silver badges455455 bronze badges ...
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Xcode “The private key for is not installed on this mac - distributing”

...without starting all the way from scratch: 1. Open Keychain Access on the machine that was used to generate the private keys 2. Select Keychains->Login and Category->Certificates on the left hand side 3. Locate the two certificates iPhone Developer: [your developer name] and iPhone Distributi...
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receiving error: 'Error: SSL Error: SELF_SIGNED_CERT_IN_CHAIN' while using npm

...edited Jul 11 at 21:53 Jean-François Fabre♦ 122k1111 gold badges9797 silver badges156156 bronze badges answered Mar 9 '12 at 8:36 ...
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What are these ^M's that keep showing up in my files in emacs?

... This answer ONLY applies if your platform is Windows! If you work on Mac/Linux, "true" should become "input" ! See help.github.com/articles/dealing-with-line-endings and here: stackoverflow.com/questions/9225599/… – K.-Michael Aye May 4 '16 at 23:07 ...
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How can I clear previous output in Terminal in Mac OS X?

...or system-wide /etc/profile). This should work for desktop environments in macOS, FreeBSD, Linux etc. Note the extra \33c is for clearing the extra \e[3J literal in non-macOS (basically for Linux/FreeBSD, we only need printf '\33c'). – vulcan raven Aug 8 '19 at...
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IE 8: background-size fix [duplicate]

...ered Apr 13 '12 at 19:25 Louis-RémiLouis-Rémi 1,7481313 silver badges1414 bronze badges ...
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Run function from the command line

... answered Oct 21 '10 at 11:52 Frédéric HamidiFrédéric Hamidi 232k3737 gold badges445445 silver badges455455 bronze badges ...
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Migration: Cannot add foreign key constraint

...gine is MyIsam wich not support foreign keys ! – François Breton Oct 9 '15 at 18:16 4 ...