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java: ArrayList - how can i check if an index exists?
...ould consider organizing it as a class to get rid of the magic numbers 3,8 etc.
Control flow using exception is bad practice.
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Reminder - \r\n or \n\r?
... HTTP protocol states you must use \r\n as the line terminator for headers etc, regardless of platform.
– Matti Virkkunen
Jun 30 '11 at 19:28
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How do I debug Node.js applications?
... from any browser supporting WebSocket. Breakpoints, profiler, livecoding, etc... It is really awesome.
Install it with:
npm install -g node-inspector
Then run:
node-debug app.js
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How to convert a normal Git repository to a bare one?
...of the target, it maps all refs (including remote-tracking branches, notes etc.) and sets up a refspec configuration such that all these refs are overwritten by a git remote update in the target repository.
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How to make a new List in Java
... 8
To create a non-empty list of fixed size (operations like add, remove, etc., are not supported):
List<Integer> list = Arrays.asList(1, 2); // but, list.set(...) is supported
To create a non-empty mutable list:
List<Integer> list = new ArrayList<>(Arrays.asList(3, 4));
In ...
What is the $$hashKey added to my JSON.stringify result
... object will embed all the resource API and you'll see methods like $save, etc. With cookies too AngularJS will add a property __ngDebug.
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How to group time by hour or by 10 minutes
... to group by a longer period then 60 minutes, say 720, which is half a day etc.
How to install PyQt4 on Windows using pip?
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In the filenames cp27 means C-python version 2.7, cp35 means python 3.5, etc.
Since Qt is a more complicated system with a compiled C++ codebase underlying the python interface it provides you, it can be more complex to build than just a pure python code package, which means it can be hard to ins...
What is the function __construct used for?
...after it has been created, and is a good place to put initialisation code, etc.
class Person {
public function __construct() {
// Code called for each new Person we create
}
}
$person = new Person();
A constructor can accept parameters in the normal manner, which are passed whe...
Upgrading Node.js to latest version
...minute and does not require you to
restart anything or clean out caches, etc.
I've done it via npm a few times before and have run into a few issues. Like for example with the n-package not using the latest stable release.
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