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When to delete branches in Git?

...u are actively developing. Delete old branches with git branch -d branch_name Delete them from the server with git push origin --delete branch_name or the old syntax git push origin :branch_name which reads as "push nothing into branch_name at origin". That said, as long as the DAG (dire...
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Changing the image source using jQuery

...s attr() function. For example, if your img tag has an id attribute of 'my_image', you would do this: <img id="my_image" src="first.jpg"/> Then you can change the src of your image with jQuery like this: $("#my_image").attr("src","second.jpg"); To attach this to a click event, you could...
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How to crop circular area from bitmap in Android

...createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888); Canvas canvas = new Canvas(output); final int color = 0xff424242; final Paint paint = new Paint(); final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight()); paint.setAntiAlias(true...
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How to easily initialize a list of Tuples?

I love tuples . They allow you to quickly group relevant information together without having to write a struct or class for it. This is very useful while refactoring very localized code. ...
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How to avoid Dependency Injection constructor madness?

... | edited Oct 6 '16 at 5:32 answered Mar 10 '10 at 20:15 M...
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How do I design a class in Python?

...function so that it only happens once. Something like: class Dog: def __init__(self): self._footsteps=None def footstep(self,n): if not self._footsteps: self.readInFootsteps(...) return self._footsteps[n] [This is now a sort of caching pattern. The first time it goe...
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How to var_dump variables in twig templates?

...I'm using latest version of Symfony 2.5, and have the config.yml and config_dev.yml setup and debug mode turned on when loading the kernel for the dev environment. I've tried the other manual methods mentioned by Morland below. Either way, I also get a blank page when dump is used. And no dump. ...
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module.exports vs exports in Node.js

... Setting module.exports allows the database_module function to be called like a function when required. Simply setting exports wouldn't allow the function to be exported because node exports the object module.exports references. The following code wouldn't allow the...
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What are best practices that you use when writing Objective-C and Cocoa? [closed]

...d method names with lower-case. Whatever else you do, don't use Win16/Win32-style Hungarian notation. Even Microsoft gave up on that with the move to the .NET platform. share ...
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What's the difference between struct and class in .NET?

What's the difference between struct and class in .NET? 19 Answers 19 ...