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Is there a difference between foreach and map?
...++, for example, foreach returns the operation it originally received. The idea is that the operation might have a state, and you may want that operation back to inspect how it evolved over the elements. map, too, may or may not return a value. In C++ transform (the equivalent for map here) happens ...
Return array in a function
... could return a reference to it if you want, but that's not really a great idea, since it sort of implies that you're getting something different from what you passed.
If you really do need a new instance of the collection, but want to avoid having it on the stack (and all the copying that entail...
Is it possible for git-merge to ignore line-ending differences?
...t files may not be readily usable for mechanical application.
The general idea, when it comes to git merge, is to rely on the third-party merge tool.
For instance, I have setup DiffMerge to be the tool for Git merge, setting a ruleset which allow that merge tool to ignore eol for certain type of fi...
Difference between malloc and calloc?
...t does zero-initialize the memory; this is not the primary difference! The idea of calloc is to abstact copy-on-write semantics for memory allocation. When you allocate memory with calloc it all maps to same physical page which is initialized to zero. When any of the pages of the allocated memory is...
What is the difference between square brackets and parentheses in a regex?
...nation of the use of a character class and a single metacharacter is a bad idea, by the way, since the layer of abstraction can slow down the match, but this is only an implementation detail and only applies to a few of regex implementations. JavaScript is not one, but it does make the subpattern sl...
Fragment or Support Fragment?
...ng for Android 4.x, using the fragments from the support library is a good idea. The support library has bugs fixed that are still present in older fragment implementations and is frequently updated with more bug fixes.
shar...
Design Patterns: Factory vs Factory method vs Abstract Factory
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The idea behind the ComputerFactory would be that you have a common creation interface (getScreen(); getKeyboard(); getDiskdrive(); ...), not an interface per computer type as you suggest. You can smell a design issue if you use...
Suppress command line output
... were too widely assumed to work to permit their elimination. However, the idea that new devices would always get names that would block future user of those names for actual files is obviously unreasonable.
Windows NT and all versions that follow (2K, XP, 7, and now 8) all follow use the much mor...
What is the Git equivalent for revision number?
...s fixed in 547cc3e..c4b2eba, and you have some other revision, you have no idea whether or not your code is supposed to contain the fix?! Surely the gits at git-central have a solution for this?!?!
– Olie
May 23 '13 at 22:29
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Linux: compute a single hash for a given folder & contents?
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I suppose this isn't ideal as the generated hash will be based on file owner, date-format setup, etc.
– Ryota
Mar 15 '17 at 22:06
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