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What is the purpose of a self executing function in javascript?

... It's all about variable scoping. Variables declared in the self executing function are, by default, only available to code within the self executing function. This allows code to be written without concern of how variables are nam...
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Center image horizontally within a div

...age are not working I thought I would ask. How can I center align (horizontally) an image inside its container div? 21 Answ...
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ExecJS::RuntimeError on Windows trying to follow rubytutorial

...e on your system and removing this line is just ignoring that fact. 2) Installing Node.js / Running away - Many people seem to just end up installing Node.js and using that instead of the JavaScript runtime already on their system. While that is a valid option, it also requires additional software...
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Warning: push.default is unset; its implicit value is changing in Git 2.0

...n the docs, but I'll try to summarize: matching means git push will push all your local branches to the ones with the same name on the remote. This makes it easy to accidentally push a branch you didn't intend to. simple means git push will push only the current branch to the one that git pull wo...
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Path.Combine for URLs?

...at Flurl includes a Url.Combine. More details: Url.Combine is basically a Path.Combine for URLs, ensuring one and only one separator character between parts: var url = Url.Combine( "http://MyUrl.com/", "/too/", "/many/", "/slashes/", "too", "few?", "x=1", "y=2" // result:...
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var functionName = function() {} vs function functionName() {}

...); function functionTwo() { console.log("Hello!"); } Historically, function declarations defined within blocks were handled inconsistently between browsers. Strict mode (introduced in ES5) resolved this by scoping function declarations to their enclosing block. 'use strict'; ...
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How can I use “.” as the delimiter with String.split() in java [duplicate]

What I am trying to do is read a .java file, and pick out all of the identifiers and store them in a list. My problem is with the .split() method. If you run this code the way it is, you will get ArrayOutOfBounds, but if you change the delimiter from "." to anything else, the code works. But I ne...
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Counting the number of True Booleans in a Python List

... count method: >>> [True,True,False].count(True) 2 This is actually more efficient than sum, as well as being more explicit about the intent, so there's no reason to use sum: In [1]: import random In [2]: x = [random.choice([True, False]) for i in range(100)] In [3]: %timeit x.count(T...
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How do I resize an image using PIL and maintain its aspect ratio?

...ntation for PIL says that thumbnail only works if the resulting image is smaller than the original one. Because of that I would guess that using resize is the better way. – So S Jan 28 '17 at 21:22 ...
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How do you declare an interface in C++?

...virtual method list of your interface by adding a virtual destructor. This allows you to pass pointer ownership to another party without exposing the concrete derived class. The destructor doesn't have to do anything, because the interface doesn't have any concrete members. It might seem contradicto...