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How To Save Canvas As An Image With canvas.toDataURL()?

I'm currently building a HTML5 web app/Phonegap native app and I can't seem to figure out how to save my canvas as an image with canvas.toDataURL() . Can somebody help me out? ...
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Calling a Java method with no name

I'm looking at the code below and found something a bit strange: 8 Answers 8 ...
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How to determine if a record is just created or updated in after_save

... It's best to differentiate with an after_update and an after_create. The callbacks can share a common method that takes an argument to indicate if it's a create or update. – matthuhiggins Oct 9 '13 at 23:44 ...
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Good way of getting the user's location in Android

Getting the user's current location within a threshold ASAP and at the same time conserve battery. 10 Answers ...
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Diagnosing Memory Leaks - Allowed memory size of # bytes exhausted

...memory. Thus, the most common source of memory leaks are cyclic references and global variables. If you use a framework, you'll have a lot of code to trawl through to find it, I'm afraid. The simplest instrument is to selectively place calls to memory_get_usage and narrow it down to where the code l...
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parsing JSONP $http.jsonp() response in angular.js

...uccess/error were deprecated. The $http legacy promise methods success and error have been deprecated and will be removed in v1.6.0. Use the standard then method instead. If $httpProvider.useLegacyPromiseExtensions is set to false then these methods will throw $http/legacy error. USE: var url...
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A simple command line to download a remote maven2 artifact to the local repository?

...en to build their applications, but is likely somewhat familiar with maven and probably has it installed. 3 Answers ...
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Javascript Array of Functions

..._function, second_function, third_function, forth_function ] and then when you want to execute a given function in the array: array_of_functions[0]('a string'); share | improve this ...
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How to reverse-i-search back and forth? [duplicate]

I use reverse-i-search often, and that's cool. Sometime though when pressing CTRL + r multiple times, I pass the command I am actually looking for. Because CTRL + r searches backward in history, from newest to oldest, I have to: ...
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What is the main purpose of setTag() getTag() methods of View?

What is the main purpose of such methods as setTag() and getTag() of View type objects? 7 Answers ...