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How can I get a JavaScript stack trace when I throw an exception?

...ce) Edit 1 (2013): A better (and simpler) solution as pointed out in the comments on the original question is to use the stack property of an Error object like so: function stackTrace() { var err = new Error(); return err.stack; } This will generate output like this: DBX.Utils.stackTra...
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How can I validate a string to only allow alphanumeric characters in it?

...know that I will never remember the syntax. Even if I study it, there will come a time soon when it's all forgotten again. – Sentinel Jan 14 '15 at 17:26 1 ...
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How to extract the substring between two markers?

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minimize app to system tray

...show the balloon tip that shows some information. Once the WindowState becomes FormWindowState.Normal, disable the NotifyIcon object by setting its Visible property to false. Now, you want the window to reappear when you double click on the NotifyIcon object in the taskbar. For this, handl...
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In HTML5, should the main navigation be inside or outside the element?

...th=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4...
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What's a concise way to check that environment variables are set in a Unix shell script?

...tive, exits. Otherwise, the value of parameter is substituted. The Colon Command I should probably add that the colon command simply has its arguments evaluated and then succeeds. It is the original shell comment notation (before '#' to end of line). For a long time, Bourne shell scripts had a c...
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How do you normalize a file path in Bash?

... stackoverflow.com/a/17744637/999943 This is a strongly related answer! I came across both of these QA posts in one day, and I wanted to link them together. – phyatt Aug 17 '16 at 19:32 ...
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Eclipse shortcut “go to line + column”

...On OSX, the shortcut is ⌘ + L It you want more short-cuts, refer http://www.shortcutworld.com/en/win/Eclipse.html share | improve this answer | follow | ...
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How to find a hash key containing a matching value

... According to ruby doc http://www.ruby-doc.org/core-1.9.3/Hash.html#method-i-key key(value) is the method to find the key on the base of value. ROLE = {"customer" => 1, "designer" => 2, "admin" => 100} ROLE.key(2) it will return the "designer"...
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What is the documents directory (NSDocumentDirectory)?

...ations sandbox, you can use the following: iOS 8 and newer, this is the recommended method + (NSURL *)applicationDocumentsDirectory { return [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] lastObject]; } if you need to support iOS 7 or earli...