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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 ...
How to determine if a number is a prime with regex?
...lly, is there zero or one character-- or, per what I mentioned above, n == 0 || n == 1. If we have the match, then return the negation of that. This corresponds with the fact that zero and one are NOT prime.
(..+?)\\1+
The second part of the regex is a little trickier, relying on groups and backr...
Check if an element is present in an array [duplicate]
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1044
ECMAScript 2016 incorporates an includes() method for arrays that specifically solves the prob...
Check whether a string contains a substring
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edited Dec 15 '15 at 9:40
answered Sep 2 '11 at 12:21
Eug...
sql ORDER BY multiple values in specific order?
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bobfluxbobflux
8,84022 gold badges2323 silver badges2222 bronze badges
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Fluid width with equally spaced DIVs
...*display:inline; zoom:1 fixes inline-block for IE6/7, see here.
font-size: 0; line-height: 0 fixes a minor issue in IE6.
#container {
border: 2px dashed #444;
height: 125px;
text-align: justify;
-ms-text-justify: distribute-all-lines;
text-justify: distribute-all-lines;
/* ju...
Anonymous recursive PHP functions
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answered Mar 19 '10 at 20:03
Derek HDerek H
10.2k66 gold badges3232 silver badges3838 bronze badges
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Add … if string is too long PHP [duplicate]
...splay the whole field, but on the other, I just want to display the first 50 characters. If the string in the description field is less than 50 characters, then it won't show ... , but if it isn't, I will show ... after the first 50 characters.
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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...
How do I specify a single test in a file with nosetests?
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answered Jul 2 '12 at 0:58
WillWill
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