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How to fix Error: listen EADDRINUSE while using nodejs?
...to put node.js behind that server and proxy it through it.
You should check for the listening event like this, to see if the server is really listening:
var http=require('http');
var server=http.createServer(function(req,res){
res.end('test');
});
server.on('listening',function(){
consol...
How do I remove a MySQL database?
... and do not miss the ; at the end, enclose the database name in between backticks:
mysql> drop database `my-database`;
Backticks are for databases or columns, apostrophes are for data within these.
For more information, see this answer to Stack Overflow question When to use single quotes, dou...
Regular expression matching a multiline block of text
I'm having a bit of trouble getting a Python regex to work when matching against text that spans multiple lines. The example text is ('\n' is a newline)
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Examples of Algorithms which has O(1), O(n log n) and O(log n) complexities
...O(1) time
Accessing Array Index (int a = ARR[5];)
Inserting a node in Linked List
Pushing and Poping on Stack
Insertion and Removal from Queue
Finding out the parent or left/right child of a node in a tree stored in Array
Jumping to Next/Previous element in Doubly Linked List
O(n) time
In a nut...
Best way to extract a subvector from a vector?
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Greg RogersGreg Rogers
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How to detect the currently pressed key?
In Windows Forms , you can know, at any time, the current position of the cursor thanks to the Cursors class.
11 Answers...
When should I use “this” in a class?
I know that this refers to a current object. But I do not know when I really need to use it. For example, will be there any difference if I use x instead of this.x in some of the methods? May be x will refer to a variable which is local for the considered method? I mean variable which is see...
convert double to int
...'t throw an exception if the value is outside the range of int in an unchecked context, whereas a call to Convert.ToInt32(double) will. The result of the cast (in an unchecked context) is explicitly undefined if the value is outside the range.
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What is a WeakHashMap and when to use it? [duplicate]
What is a WeakHashMap and when should one be using it? What are the differences between a WeakHashMap and a HashMap ?
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How to remove duplicate values from an array in PHP
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Jeremy RutenJeremy Ruten
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