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Test if a variable is set in bash when using “set -o nounset”

... I tried this and I'm surprised this works... Everything is correct except according to "info bash", "${WHATEVER-}" should have a ":" (colon) before the "-" (dash) like: "${WHATEVER:-}", and "${WHATEVER+defined}" should have a colon before...
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Download a specific tag with Git

...hole repository. After the clone, you can list the tags with $ git tag -l and then checkout a specific tag: $ git checkout tags/<tag_name> Even better, checkout and create a branch (otherwise you will be on a branch named after the revision number of tag): $ git checkout tags/<tag_name...
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How can I split a string into segments of n characters?

As the title says, I've got a string and I want to split into segments of n characters. 12 Answers ...
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How can I get jQuery to perform a synchronous, rather than asynchronous, Ajax request?

I have a JavaScript widget which provides standard extension points. One of them is the beforecreate function. It should return false to prevent an item from being created. ...
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How do I find the absolute url of an action in ASP.NET MVC?

...r is the better one, this way Resharper can still validate that the Action and Controller exists. I would suggest the use of Request.Url.Scheme instead of the http, that way http and https are both supported. – Pbirkoff Mar 16 '12 at 10:25 ...
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How to fully remove Xcode 4

... I use this command: sudo /Developer/Library/uninstall-devtools --mode=all Edit (1 year later): If you've downloaded Xcode from the App Store, it's self-contained, as @mediaslave suggests. You can just drag it to the trash or use AppZa...
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Disable a method in a ViewSet, django-rest-framework

... @SunnySydeUp Just trying this now and it seems the router does generate the route for a list view, but it 404s because the ViewSet doesn't know how to handle the request. Is this what you expected? – Steve Jalim Jul 31 '...
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how to remove shared preference while application uninstall in android

I have an android application to save the login details such as user name and password via SharedPreferences thats works fine, but i need to remove all my used SharedPreferences while my application uninstall. How to do it? ...
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What is the difference between new/delete and malloc/free?

What is the difference between new / delete and malloc / free ? 15 Answers 15 ...
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Turn on IncludeExceptionDetailInFaults (either from ServiceBehaviorAttribute or from the

I have a WCF service that has been working perfectly, and something has changed and I don't know what. 6 Answers ...