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What is the best regular expression to check if a string is a valid URL?

... a great solution for recognizing URLs in most used formats such as: www.google.com http://www.google.com mailto:somebody@google.com somebody@google.com www.url-with-querystring.com/?url=has-querystring The regular expression used is: /((([A-Za-z]{3,9}:(?:\/\/)?)(?:[-;:&=\+\$,\w]+@)?[A-Za-z...
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Flatten List in LINQ

...s forget this one -- I know it's there, but I just spend way too much time Googling for it every time I need to use it. Bookmarking this answer. :-) – BrainSlugs83 Dec 19 '13 at 18:51 ...
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How to extend an existing JavaScript array with another array, without creating a new array

...r really answered the question, but it was a 2015 hack around first-hit-on-Google :) For those that simply searched for "JavaScript array extend" and got here, you can very well use Array.concat. var a = [1, 2, 3]; a = a.concat([5, 4, 3]); Concat will return a copy the new array, as thread sta...
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Using CSS to insert text

... To cover older IE, you can conditionally include code.google.com/p/ie7-js which will allow your CSS to remain the same for all browsers. It's an alternative to jQuery that is closer to standards. – system PAUSE Apr 29 '10 at 23:22 ...
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AsyncTask and error handling on Android

.... If so, show an error message." (From the user "Streets of Boston" groups.google.com/group/android-developers/browse_thread/thread/…) – OneWorld Oct 12 '10 at 15:06 ...
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@RequestParam in Spring MVC handling optional parameters

....util.OptionalDouble, java.util.OptionalInt, java.util.OptionalLong or com.google.common.base.Optional as the type for a field or a parameter. Optional was designed to provide a limited mechanism for library method return types where there needed to be a clear way to represent "no result". Using a f...
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What is ASP.NET Identity's IUserSecurityStampStore interface?

... But if the user's password is changed, or a login is removed (unlink your google/fb account), the stamp will change. This is needed for things like automatically signing users/rejecting old cookies when this occurs, which is a feature that's coming in 2.0. Identity is not open source yet, its cur...
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Ruby on Rails. How do I use the Active Record .build method in a :belongs to relationship?

.... But if you really are looking for the actual location you could probably Google for the source code. – MCB Nov 25 '13 at 16:09  |  show 1 mo...
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WebSocket with SSL

... @muaaz sorry, I don't know the apache configuration apart from googling it myself. – kanaka Jan 12 '16 at 22:03 add a comment  |  ...
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decompiling DEX into Java sourcecode

...d dex2jar + jd-gui javadecompilers.com enjarify Apktool But none beats google's own tools 1)Android Studio 2.x: build> analyze apk 2)Android Studio 3.0: Profile or Debug APK share | impr...