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if A vs if A is not None:

...summary: object.__nonzero__(self) Called to implement truth value testing and the built-in operation bool(); should return False or True, or their integer equivalents 0 or 1. When this method is not defined, __len__() is called, if it is defined, and the object is considered true if its res...
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CSS technique for a horizontal line with words in the middle

...ackground:#fff; padding:0 10px; } <h2><span>THIS IS A TEST</span></h2> <p>this is some content other</p> I tested in Chrome only, but there's no reason it shouldn't work in other browsers. JSFiddle: http://jsfiddle.net/7jGHS/ ...
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Linux: copy and create destination dir if it does not exist

... I don't think you need the test -d: mkdir -p still succeeds even if the directory already exists. – ephemient Oct 7 '09 at 15:33 ...
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How to instantiate a File object in JavaScript?

There's a File object in JavaScript. I want to instantiate one for testing purposes. 6 Answers ...
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Using GPU from a docker container?

...e execution context rather than lxc. Environment These instructions were tested on the following environment: Ubuntu 14.04 CUDA 6.5 AWS GPU instance. Install nvidia driver and cuda on your host See CUDA 6.5 on AWS GPU Instance Running Ubuntu 14.04 to get your host machine setup. Install Dock...
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Calling Objective-C method from C++ member function?

...responding header file. // Header file (We call it "ObjCFunc.h") #ifndef test2_ObjCFunc_h #define test2_ObjCFunc_h @interface myClass :NSObject -(void)hello:(int)num1; @end #endif // Corresponding Objective C file(We call it "ObjCFunc.m") #import <Foundation/Foundation.h> #include "ObjCFu...
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How do I add a class to a given element?

...uery to do the same is. The question was "how can I do that", a thoroughly tested library is the sensible answer. – rfunduk Feb 3 '09 at 20:06 8 ...
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What’s the difference between “Array()” and “[]” while declaring a JavaScript array?

... Unfortunately that test is improperly prepared. It's testing an initialization of an Array with initializations of arrays followed by Array access. There's no control to prove that the browsers are actually pre-allocating the memory (which the ...
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Passing arguments to angularjs filters

...pp level variable - var app = angular.module('filterApp',[]); app.value('test_obj', {'TEST' : 'test be check se'}); Your Filter will be like :- app.filter('testFilter', [ 'test_obj', function(test_obj) { function test_filter_function(key, dynamic_data) { if(dynamic_data){ var...
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How do I move a file with Ruby?

...this works across drives, local and remote, eg <code>File.rename 'c:/test/test.txt', 'e:/test.txt'</code>, what OS do you use ? – peter Jan 25 '13 at 10:23 ...