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What is the difference between DSA and RSA?
...ppears they are both encryption algorithms that require public and private keys. Why would I pick one versus the other to provide encryption in my client server application?
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Python's json module, converts int dictionary keys to strings
... is run, python's json module (included since 2.6) converts int dictionary keys to strings.
9 Answers
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std::next_permutation Implementation Explanation
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Let's look at some permutations:
1 2 3 4
1 2 4 3
1 3 2 4
1 3 4 2
1 4 2 3
1 4 3 2
2 1 3 4
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How do we go from one permutation to the next? Firstly, let's look at things a little differently. We can view the elements as digits and ...
How to create an array containing 1…N
I'm looking for any alternatives to the below for creating a JavaScript array containing 1 through to N where N is only known at runtime.
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C# Java HashMap equivalent
... HashMap has the put and get methods for setting/getting items
myMap.put(key, value)
MyObject value = myMap.get(key)
C#'s Dictionary uses [] indexing for setting/getting items
myDictionary[key] = value
MyObject value = myDictionary[key]
null keys
Java's HashMap allows null keys
.NET's Dicti...
How much faster is Redis than mongoDB?
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Rough results from the following benchmark: 2x write, 3x read.
Here's a simple benchmark in python you can adapt to your purposes, I was looking at how well each would perform simply setting/retrieving values:
#!/usr/bin/env python2.7
import sys, time
from pymongo...
Circle line-segment collision detection algorithm?
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Taking
E is the starting point of the ray,
L is the end point of the ray,
C is the center of sphere you're testing against
r is the radius of that sphere
Compute:
d = L - E ( Direction vector of ray, from start to en...
How to temporarily exit Vim and go back
How could I exit Vim, not :q , and then go back to continue editing?
10 Answers
10
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Is it possible to include one CSS file in another?
... answered Sep 29 '08 at 4:29
Kevin ReadKevin Read
11.4k11 gold badge1515 silver badges99 bronze badges
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Correct way to convert size in bytes to KB, MB, GB in JavaScript
...om this: (source)
function bytesToSize(bytes) {
var sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB'];
if (bytes == 0) return '0 Byte';
var i = parseInt(Math.floor(Math.log(bytes) / Math.log(1024)));
return Math.round(bytes / Math.pow(1024, i), 2) + ' ' + sizes[i];
}
Note : This is original c...