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How to generate random SHA1 hash to use as ID in node.js?
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edited May 23 '17 at 12:10
Community♦
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answered Feb 23 '12 at 6:28
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Static variables in member functions
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iammilindiammilind
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RegEx to parse or validate Base64 data
...sion to match Base64 encoded words, you can use the following:
^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$
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How to loop through all but the last item of a list?
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answered May 27 '09 at 9:04
freespacefreespace
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Nested JSON objects - do I have to use arrays for everything?
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204
You don't need to use arrays.
JSON values can be arrays, objects, or primitives (numbers or st...
Hadoop “Unable to load native-hadoop library for your platform” warning
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I assume you're running Hadoop on 64bit CentOS. The reason you saw that warning is the native Ha...
Random color generator
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1062
Use getRandomColor() in place of "#0000FF":
function getRandomColor() {
var letters = ...
Accessing class variables from a list comprehension in the class definition
...owing will fail:
class A:
a = 42
b = list(a + i for i in range(10))
So, to summarize: you cannot access the class scope from functions, list comprehensions or generator expressions enclosed in that scope; they act as if that scope does not exist. In Python 2, list comprehensions were i...
How do you check whether a number is divisible by another number (Python)?
I need to test whether each number from 1 to 1000 is a multiple of 3 or a multiple of 5. The way I thought I'd do this would be to divide the number by 3, and if the result is an integer then it would be a multiple of 3. Same with 5.
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How do I convert an integer to binary in JavaScript?
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function dec2bin(dec){
return (dec >>> 0).toString(2);
}
dec2bin(1); // 1
dec2bin(-1); // 11111111111111111111111111111111
dec2bin(256); // 100000000
dec2bin(-256); // 11111111111111111111111100000000
You can use Number.toString(2) function, but it has ...