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How to secure MongoDB with username and password
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You need to start mongod with the --auth option after setting up the user.
From the MongoDB Si...
How do I test if a variable is a number in Bash?
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Generate random password string with requirements in javascript
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Math.random() // Generate random number, eg: 0.123456
.toString(36) // Convert to base-36 : "0.4fzyo82mvyr"
.slice(-8);// Cut off last 8 characters : "yo82mvyr"
Documentation for the Number.prototype.toString and string.p...
What is Java String interning?
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http://docs.oracle.com/javase/7/docs/api/java/lang/String.html#intern()
Basically doing Strin...
How do you get the width and height of a multi-dimensional array?
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You use Array.GetLength with the index of the dimension you wish to retrieve.
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How to determine if binary tree is balanced?
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27 Answers
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In C/C++ what's the simplest way to reverse the order of bits in a byte?
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Are GUID collisions possible?
I'm working on a database in SQL Server 2000 that uses a GUID for each user that uses the app it's tied to. Somehow, two users ended up with the same GUID. I know that microsoft uses an algorithm to generate a random GUID that has an extremely low chance of causing collisons, but is a collision stil...
What makes Lisp macros so special?
...for a common case. The line
divisibleByTwo = [x for x in range(10) if x % 2 == 0]
yields a list containing all even numbers between 0 and 9. Back in the Python 1.5 days there was no such syntax; you'd use something more like this:
divisibleByTwo = []
for x in range( 10 ):
if x % 2 == 0:
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How to access and test an internal (non-exports) function in a node.js module?
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251
The rewire module is definitely the answer.
Here's my code for accessing an unexported functio...