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What is the idiomatic Go equivalent of C's ternary operator?
In C/C++ (and many languages of that family), a common idiom to declare and initialize a variable depending on a condition uses the ternary conditional operator :
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“std::endl” vs “\n”
...s open in text mode, which is what you get unless you ask for binary. The compiled program will write out the correct thing for the system compiled for.
The only difference is that std::endl flushes the output buffer, and '\n' doesn't. If you don't want the buffer flushed frequently, use '\n'. I...
Fix a Git detached head?
...ed head means you are no longer on a branch, you have checked out a single commit in the history (in this case the commit previous to HEAD, i.e. HEAD^).
If you want to delete your changes associated with the detached HEAD
You only need to checkout the branch you were on, e.g.
git checkout master
Ne...
What is INSTALL_PARSE_FAILED_NO_CERTIFICATES error?
...xml file. All i did was change the android:name property. however, this completely broke the entire app. when I try to install it fails and reads.
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Case objects vs Enumerations in Scala
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One big difference is that Enumerations come with support for instantiating them from some name String. For example:
object Currency extends Enumeration {
val GBP = Value("GBP")
val EUR = Value("EUR") //etc.
}
Then you can do:
val ccy = Currency.withName("E...
Architecture of a single-page JavaScript web application?
How should a complex single-page JS web application be structured on the client-side? Specifically I'm curious about how to cleanly structure the application in terms of its model objects, UI components, any controllers, and objects handling server persistence.
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Simple (non-secure) hash function for JavaScript? [duplicate]
...of lines of code, not hundreds of lines) hash function written in (browser-compatible) JavaScript? Ideally I'd like something that, when passed a string as input, produces something similar to the 32 character hexadecimal string that's the typical output of MD5, SHA1, etc. It doesn't have to be cr...
How do I find all of the symlinks in a directory tree?
...ur intention is to follow the symbolic links too, you should use your find command but you should include the -L option; in fact the find man page says:
-L Follow symbolic links. When find examines or prints information
about files, the information used shall be taken from the pr...
2D cross-platform game engine for Android and iOS? [closed]
...malade and I found it satisfying. Although it's not free and the developer community is also not large enough, but still you can handle most of the task using it's tutorials. (I'll write my tutorials once I got some times too).
IwGame is a good engine, developed by one of the Marmalade user. It's go...
How to efficiently count the number of keys/properties of an object in JavaScript?
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To do this in any ES5-compatible environment, such as Node, Chrome, IE 9+, Firefox 4+, or Safari 5+:
Object.keys(obj).length
Browser compatibility
Object.keys documentation (includes a method you can add to non-ES5 browsers)
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