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Uppercase or lowercase doctype?

... In HTML, the DOCTYPE is case insensitive. The following DOCTYPEs are all valid: <!doctype html> <!DOCTYPE html> <!DOCTYPE HTML> <!DoCtYpE hTmL> In XML serializations (i.e. XHTML) the DOCTYPE is not required, but if you use it, DOCTYPE should be uppercase: <!DOCTY...
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What are OLTP and OLAP. What is the difference between them?

Actually what do they mean? All articles I find about them don't give me an idea, or my knowledge is too insufficient to understand it. ...
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Archiving project in Xcode incorrectly creates multi-application bundle

...ead of bundling my main target for release, which is what I want. Specifically, when I validate my archive in Organizer, it gives me the message: ...
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How to extend an existing JavaScript array with another array, without creating a new array

...ethod can take multiple arguments. You can use the spread operator to pass all the elements of the second array as arguments to .push: >>> a.push(...b) If your browser does not support ECMAScript 6, you can use .apply instead: >>> a.push.apply(a, b) Or perhaps, if you think i...
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Trust Anchor not found for Android SSL Connection

... The solution of @Chrispix is dangerous! Trusting all certificates allows anybody to do a man in the middle attack! Just send ANY certificate to the client and it will accept it! Add your certificate(s) to a custom trust manager like described in this post: Trusting all cer...
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Rails CSRF Protection + Angular.js: protect_from_forgery makes me to log out on POST

... your server needs to set a token in a JavaScript readable session cookie called XSRF-TOKEN on first HTTP GET request. On subsequent non-GET requests the server can verify that the cookie matches X-XSRF-TOKEN HTTP header Here is my solution based on those instructions: First, set the cookie: # app/...
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Where do I put image files, css, js, etc. in Codeigniter?

....php: function asset_url(){ return base_url().'assets/'; } I will usually keep common routines similar to this in the same file and autoload it with codeigniter's autoload configuration. Note: autoload URL helper for base_url() access. application/config/autoload.php: $autoload['helper...
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Add file extension to files with bash

... second one adds an extension on all files, not just extensionless ones – Jeff Mar 24 '15 at 15:55 5 ...
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How to sort strings in JavaScript

... An updated answer (October 2014) I was really annoyed about this string natural sorting order so I took quite some time to investigate this issue. I hope this helps. Long story short localeCompare() character support is badass, just use it. As pointed out by Shog9...
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SourceKitService Terminated

...th Xcode where the error "Source Kit Service Terminated" is popping up and all syntax highlighting and code completion is gone in Swift. How can I fix this? ...