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Javascript add leading zeroes to date
I've created this script to calculate the date for 10 days in advance in the format of dd/mm/yyyy:
24 Answers
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How to get a substring of text?
I have text with length ~700. How do I get only ~30 of its first characters?
5 Answers
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How to express infinity in Ruby?
...y 1.8.6, 1.8.7, and 1.9.2 you have Float.infinite?.
PositiveInfinity = +1.0/0.0
=> Infinity
NegativeInfinity = -1.0/0.0
=> -Infinity
CompleteInfinity = NegativeInfinity..PositiveInfinity
=> -Infinity..Infinity
*I've verified this in Ruby 1.8.6 and 1.9.2
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Data structure for loaded dice?
...ree new n-element arrays, qk, ak, and bk. Each qk is a probability between 0 and 1, and each ak and bk is an integer between 1 and n.
We generate random numbers between 1 and n by generating two random numbers, r and s, between 0 and 1. Let i = floor(r*N)+1. If qi < s then return ai else return...
Responsive iframe using Bootstrap
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answered Aug 10 '14 at 20:52
ChristinaChristina
31.5k1717 gold badges7474 silver badges117117 bronze badges
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Opacity of background-color, but not the text [duplicate]
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601
Use rgba!
.alpha60 {
/* Fallback for web browsers that don't support RGBa */
backgroun...
Time complexity of Sieve of Eratosthenes algorithm
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answered Apr 6 '10 at 5:17
ShreevatsaRShreevatsaR
34.9k1515 gold badges9595 silver badges117117 bronze badges
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SQLite INSERT - ON DUPLICATE KEY UPDATE (UPSERT)
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Since 3.24.0 SQLite also supports upsert, so now you can simply write the following
INSERT INTO visits (ip, hits)
VALUES ('127.0.0.1', 1)
ON CONFLICT(ip) DO UPDATE SET hits = hits + 1;
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In Matlab, when is it optimal to use bsxfun?
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+500
There are three reasons I use bsxfun (documentation, blog link)
bsxfun is faster than repmat (see below)
bsxfun requires less typin...