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Why is Node.js single threaded? [closed]
...rvers every client request is instantiated on a new thread. But in Node.js all the clients run on the same thread (they can even share the same variables!) I understand that I/O operations are event-based so they don't block the main thread loop.
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What are the Ruby Gotchas a newbie should be warned about? [closed]
I have recently learned the Ruby programming language, and all in all it is a good language. But I was quite surprised to see that it was not as simple as I had expected. More precisely, the "rule of least-surprise" did not seem very respected to me (of course this is quite subjective). For examp...
What is null in Java?
... false.
It is also the default value (for variables that have them) for all reference types:
JLS 4.12.5 Initial Values of Variables
Each class variable, instance variable, or array component is initialized with a default value when it is created:
For all reference types, the defa...
Cache an HTTP 'Get' service response in AngularJS?
...url, { cache: true}).success(...);
or, if you prefer the config type of call:
$http({ cache: true, url: url, method: 'GET'}).success(...);
Cache Object
You can also use a cache factory:
var cache = $cacheFactory('myCache');
$http.get(url, { cache: cache })
You can implement it yourself usi...
Android 4.3 menu item showAsAction=“always” ignored
... @dineth appcompat is used as a library project. This means all its resources (strings, drawable, attributes...) are declared in your application namespace instead of the android namespace. As the showAsAction attribute did not exist in android-7, you have to use your app namespace
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When/Why to use Cascading in SQL Server?
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Summary of what I've seen so far:
Some people don't like cascading at all.
Cascade Delete
Cascade Delete may make sense when the semantics of the relationship can involve an exclusive "is part of" description. For example, an OrderLine record is part of its parent order, and OrderLines w...
What is the bower (and npm) version syntax?
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In a nutshell, the syntax for Bower version numbers (and NPM's) is called SemVer, which is short for 'Semantic Versioning'. You can find documentation for the detailed syntax of SemVer as used in Bower and NPM on the API for the semver parser within Node/npm. You can learn more about the unde...
Regular expression to match balanced parentheses
I need a regular expression to select all the text between two outer brackets.
21 Answers
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List the queries running on SQL Server
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You can run the sp_who command to get a list of all the current users, sessions and processes. You can then run the KILL command on any spid that is blocking others.
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Hidden features of Android development?
...Android that will definitely make your life easier and your apps better.
All the source code for the platform and all the non-Google native apps is available for you to browse, download, borrow, or steal from the Android Open Source project.
Using the resources framework, creating localized versio...