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What do all of Scala's symbolic operators mean?

...e method defined on List (though it could be the object of the same name), and :+= is probably the method defined on various Buffer classes. So, let's see them. Keywords/reserved symbols There are some symbols in Scala that are special. Two of them are considered proper keywords, while others are...
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Understanding recursion [closed]

I'm having major trouble understanding recursion at school. Whenever the professor is talking about it, I seem to get it but as soon as I try it on my own it completely blows my brains. ...
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Fundamental difference between Hashing and Encryption algorithms

I see a lot of confusion between hashes and encryption algorithms and I would like to hear some more expert advice about: 1...
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What's the difference between Task.Start/Wait and Async/Await?

...g something You are. what is the difference between doing Task.Wait and await task? You order your lunch from the waiter at the restaurant. A moment after giving your order, a friend walks in and sits down next to you and starts a conversation. Now you have two choices. You can ignore your ...
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Why is a boolean 1 byte and not 1 bit of size?

... Actually, the four x86 instructions bt, bts, btr and btc can address single bits! – fredoverflow Jan 7 '11 at 16:07 ...
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Difference between break and continue statement

Can anyone tell me the difference between break and continue statements? 21 Answers ...
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Go > operators

Could someone please explain to me the usage of << and >> in Go? I guess it is similar to some other languages. ...
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What is the difference between UTF-8 and ISO-8859-1?

What is the difference between UTF-8 and ISO-8859-1 ? 8 Answers 8 ...
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“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”

...y. Side effects are propagated to replicas too. correction: both REPLACE and INSERT...ON DUPLICATE KEY UPDATE are non-standard, proprietary inventions specific to MySQL. ANSI SQL 2003 defines a MERGE statement that can solve the same need (and more), but MySQL does not support the MERGE statemen...
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Version vs build in Xcode

I have an app that I developed with Xcode 3 and recently started editing with Xcode 4. In the target summary I have the iOS application target form with fields: identifier, version, build, devices, and deployment target. The version field is blank and the build field is 3.4.0 (which matches the vers...