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Checking if a variable is an integer

...Ricbermo "1111111" is a String. A String that happens to be convertible to and Integer. – Sqeaky Apr 28 '14 at 15:32  |  show 3 more comments ...
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Unable to install gem - Failed to build gem native extension - cannot load such file — mkmf (LoadErr

... But I have 1.9.3 ruby only. – Alexandre Dec 7 '12 at 17:14 5 ruby 1.9.3 is an ...
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How do I get an apk file from an Android device?

How do I get the apk file from an android device? Or how do I transfer the apk file from device to system? 24 Answers ...
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How do I format a date with Dart?

I have an instance of DateTime and I would like to format that to a String. How do I do that? I want to turn the date into a string, something like "2013-04-20". ...
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How can I display an image from a file in Jupyter Notebook?

... Note, until now posted solutions only work for png and jpg! If you want it even easier without importing further libraries or you want to display an animated or not animated GIF File in your Ipython Notebook. Transform the line where you want to display it to markdown and us...
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How to customise file type to syntax associations in Sublime Text?

... In Sublime Text (confirmed in both v2.x and v3.x) there is a menu command: View -> Syntax -> Open all with current extension as ... share | improve this...
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CSS for grabbing cursors (drag & drop)

...rsor to change when they're hovering over the background. The -moz-grab and -moz-grabbing CSS cursors are ideal for this. Of course, they only work in Firefox... are there equivalent cursors for other browsers? Do I have to do something a little more custom than standard CSS cursors? ...
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How to find out what character key is pressed?

... this works ok for alphabetic chars, but what about dots/brakets and other typogtaphic symbols? – VoVaVc Jan 24 '14 at 15:13 6 ...
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Why does C++ need a separate header file?

...ile with the same functions as in the .cpp file. It makes creating classes and refactoring them very difficult, and it adds unnecessary files to the project. And then there is the problem with having to include header files, but having to explicitly check if it has already been included. ...
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Token Authentication for RESTful API: should the token be periodically changed?

I'm building a RESTful API with Django and django-rest-framework . 9 Answers 9 ...