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eval command in Bash and its typical uses

After reading the bash man pages and with respect to this post . 10 Answers 10 ...
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Disadvantages of Test Driven Development? [closed]

... Several downsides (and I'm not claiming there are no benefits - especially when writing the foundation of a project - it'd save a lot of time at the end): Big time investment. For the simple case you lose about 20% of the actual implementatio...
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Difference between method and function in Scala

...cification tell us. Chapter 3 (types) tell us about Function Types (3.2.9) and Method Types (3.3.1). Chapter 4 (basic declarations) speaks of Value Declaration and Definitions (4.1), Variable Declaration and Definitions (4.2) and Functions Declarations and Definitions (4.6). Chapter 6 (expressions) ...
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Python's many ways of string formatting — are the older ones (going to be) deprecated?

... While there are various indications in the docs that .format and f-strings are superior to % strings, there's no surviving plan to ever deprecate the latter. In commit Issue #14123: Explicitly mention that old style % string formatting has caveats but is not going away any time soon.,...
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How are everyday machines programmed?

How are everyday machines (not so much computers and mobile devices as appliances, digital watches, etc) programmed? What kind of code goes into the programming of a Coca-Cola vending machine? How does my coffee maker accept a pre-programmed time and begin brewing a pot of coffee hours later, when t...
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Is it possible to define more than one function per file in MATLAB, and access them from outside tha

... the same name as the m-file, but for clarity it should. When the function and file name differ, the file name must be used to call the main function. All subsequent functions in the m-file, called local functions (or "subfunctions" in the older terminology), can only be called by the main function...
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Unable to run app in Simulator: Xcode beta 6 iOS 8

I am unable to launch my app on simulator using Xcode 6 beta and iPhone 5s simulator. First I am getting an error message from Simulator ...
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Understanding how recursive functions work

...grok yet. Filtering out all of the (extremely clever) "In order to understand recursion, you must first understand recursion." replies from various online threads I still am not quite getting it. ...
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How would Git handle a SHA-1 collision on a blob?

This probably never happened in the real-world yet, and may never happen, but let's consider this: say you have a git repository, make a commit, and get very very unlucky: one of the blobs ends up having the same SHA-1 as another that is already in your repository. Question is, how would Git handle ...
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Group vs role (Any real difference?)

Can anyone tell me, what's the real difference between group and role? I've been trying to figure this out for some time now and the more information I read, the more I get the sense that this is brought up just to confuse people and there is no real difference. Both can do the other's job. I've alw...