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MongoDB logging all queries
...ing to: test
> use myDb
switched to db myDb
> db.getProfilingLevel()
0
> db.setProfilingLevel(2)
{ "was" : 0, "slowms" : 1, "ok" : 1 }
> db.getProfilingLevel()
2
> db.system.profile.find().pretty()
Source: http://docs.mongodb.org/manual/reference/method/db.setProfilingLevel/
db.set...
How to redirect the output of an application in background to /dev/null
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edited Apr 13 '17 at 21:20
answered Nov 21 '11 at 23:40
ev...
NGINX to reverse proxy websockets AND enable SSL (wss://)?
...rade;
proxy_set_header Connection "upgrade";
proxy_read_timeout 86400;
}
You can also check the nginx changelog and the WebSocket proxying documentation.
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Meaning of Open hashing and Closed hashing
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– Ken Wayne VanderLinde
Dec 3 '18 at 0:48
'This explains why "closed hashing" and "open addressing" are synonyms.'
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Where does this come from: -*- coding: utf-8 -*-
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90
This way of specifying the encoding of a Python file comes from PEP 0263 - Defining Python Sourc...
Git: Find the most recent common ancestor of two branches
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1056
You are looking for git merge-base. Usage:
$ git merge-base branch2 branch3
050dc022f3a65bdc7...
What does new self(); mean in PHP?
...getInstance();
var_dump($a);
Here, you'll get :
object(MyChildClass)#1 (0) { }
Which means self means MyChildClass -- i.e. the class in which it is written.
For the second situation, the code would look like this :
class MyParentClass {
public static function getInstance() {
ret...
Types in Objective-C on iOS
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350
This is a good overview:
http://reference.jumpingmonkey.org/programming_languages/objective-c/t...
SVN (Subversion) Problem “File is scheduled for addition, but is missing” - Using Versions
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edited Feb 11 '10 at 22:17
answered Feb 11 '10 at 21:48
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Get average color of image via Javascript
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150
AFAIK, the only way to do this is with <canvas/>...
DEMO V2: http://jsfiddle.net/xLF38/81...