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Which characters make a URL invalid?

...s above: /^[!#$&-;=?-[]_a-z~]+$/ – Leif Wickland Oct 7 '11 at 17:01 44 ...
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What is the meaning and difference between subject, user and principal?

...ntext of security frameworks, a few terms commonly occur subject , user and principal , of which I have not been able to find a clear definition and the difference between them. ...
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Abusing the algebra of algebraic data types - why does this work?

...ely, all unit types. They behave identically under algebraic manipulations and, more importantly, the amount of information present is still preserved. You probably want a zero type as well. Haskell provides that as Void. There are no values whose type is zero, just as there is one value whose type ...
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When writing a directive in AngularJS, how do I decide if I need no new scope, a new child scope, or

...omething similar to a flowchart that walks me through a bunch of questions and out pops the correct answer – no new new scope, new child scope, or new isolate scope – but that is likely asking for too much. Here's my current paltry set of guidelines: ...
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Business logic in MVC [closed]

... @mud what if we devide our model into two more layers i.e service layer and repository...service layer is responsible for business logic and repository is responsible for data layer...? – Dragon Nov 14 '15 at 19:02 ...
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What is the difference between Type and Class?

What makes a type different from class and vice versa? 20 Answers 20 ...
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Is there a way to get the source code from an APK file?

The hard drive on my laptop just crashed and I lost all the source code for an app that I have been working on for the past two months. All I have is the APK file that is stored in my email from when I sent it to a friend. ...
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How do you manage databases in development, test, and production?

...a hard time trying to find good examples of how to manage database schemas and data between development, test, and production servers. ...
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Is there a standard for storing normalized phone numbers in a database?

...in database fields? I'm looking for something that is flexible enough to handle international numbers, and also something that allows the various parts of the number to be queried efficiently. ...
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When NOT to use Cassandra?

There has been a lot of talk related to Cassandra lately. 18 Answers 18 ...