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What's the difference between Perl's backticks, system, and exec?

...It never returns true, because if the command is found it never returns at all. There is also no point in returning STDOUT, STDERR or exit status of the command. You can find documentation about it in perlfunc, because it is a function. system executes a command and your Perl script is con...
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Adding multiple class using ng-class

...ass="{'class1 class2' : expression1}" just test that and did not worked at all, solution as @CodeHater said "To apply multiple classes when an expression holds true:" that made the trick – d1jhoni1b Jul 14 '14 at 22:51 ...
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Invalidating JSON Web Tokens

...s an emergency, or a user token was compromised, one thing you could do is allow the user to change an underlying user lookup ID with their login credentials. This would render all associated tokens invalid, as the associated user would no longer be able to be found. I also wanted to note that it is...
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could not resolve host github.com error while cloning remote repository in git

...me/password -- in clear in the proxy URL, see below) Note the NO_PROXY, to allow to access internal site to your company You also can register that in your git config: git config --global http.proxy http://<login_internet>:<password_internet>@aproxy:aport But if you have incorrect proxy...
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Cannot create an array of LinkedLists in Java…?

...nto it. ArrayList will index faster, but Fredrik's solution is better overall. – Steve Zobell Mar 9 '17 at 20:08 add a comment  |  ...
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In Java, how do I check if a string contains a substring (ignoring case)? [duplicate]

... for some reason I'm getting false when I call "2014-03-25T17:55:00".contains("T") – Jeremy List Mar 25 '14 at 8:45 3 ...
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How to change font face of Webview in Android?

...copyFile Status:: "+status); return status; } 3.You have to call above function only once (you have to find some logic for this). copyFile(getContext(), "myfont.ttf"); 4.Use the below code to set value for your webview. Here I am using CSS to set font. private String getHtmlData(Co...
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Cannot install packages using node package manager in Ubuntu

... TL;DR: sudo apt-get install nodejs-legacy First of all let me clarify the situation a bit. In summer 2012 Debian maintainers decided to rename Node.js executable to prevent some kind of namespace collision with another package. It was very hard ...
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How to install a gem or update RubyGems if it fails with a permissions error

I'm trying to install a gem using gem install mygem or update RubyGems using gem update --system , and it fails with this error: ...
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Best practices for catching and re-throwing .NET exceptions

... that bombs here } catch (Exception ex) { throw; } throw ex; is basically like throwing an exception from that point, so the stack trace would only go to where you are issuing the throw ex; statement. Mike is also correct, assuming the exception allows you to pass an exception (which is recom...