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How to get the first element of an array?

...x of 0. You know what they say about assumption... – Andy Aug 9 '15 at 16:19 16 @Andy There were...
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Should CSS always preceed Javascript?

...ownload each time a page is loaded. To simulate reality, I included jQuery and the H5BP CSS (so there's a decent amount of script/CSS to parse) Set up two pages - one with CSS before script, one with CSS after script. Recorded how long it took for the external script in the <head> to execute R...
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Getting number of elements in an iterator in Python

...s are in an iterator in Python, in general, without iterating through each and counting? 16 Answers ...
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Objective-C Static Class Level variables

...ch stores a unique ID. In C#, Java etc I can define a static int currentID and each time i set the ID i can increase the currentID and the change occurs at the class level not object level. Can this be done in Objective-C? I've found it very hard to find an answer for this. ...
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What does the git index contain EXACTLY?

What does the Git index exactly contain, and what command can I use to view the content of the index? 5 Answers ...
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How to append to a file in Node?

... For occasional appends, you can use appendFile, which creates a new file handle each time it's called: Asynchronously: const fs = require('fs'); fs.appendFile('message.txt', 'data to append', function (err) { if (err) throw err; console.log('Saved!'); }); Synchronously: const fs = require...
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Faster s3 bucket duplication

I have been trying to find a better command line tool for duplicating buckets than s3cmd . s3cmd can duplicate buckets without having to download and upload each file. The command I normally run to duplicate buckets using s3cmd is: ...
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How do I iterate through children elements of a div using jQuery?

I have a div and it has several input elements in it... I'd like to iterate through each of those elements. Ideas? 7 Answer...
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Why should I use core.autocrlf=true in Git?

I have a Git repository that is accessed from both Windows and OS X, and that I know already contains some files with CRLF line-endings. As far as I can tell, there are two ways to deal with this: ...
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How do I find the location of Python module sources?

...king at themodule.__file__. The datetime module, however, is written in C, and therefore datetime.__file__ points to a .so file (there is no datetime.__file__ on Windows), and therefore, you can't see the source. If you download a python source tarball and extract it, the modules' code can be found...