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What is the colon operator in Ruby?
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answered Jun 14 '11 at 0:33
Chris Jester-YoungChris Jester-Young
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How to check with javascript if connection is local host?
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answered Jul 1 '10 at 23:53
UnicronUnicron
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What is the fastest or most elegant way to compute a set difference using Javascript arrays?
...don't know if this is most effective, but perhaps the shortest
A = [1, 2, 3, 4];
B = [1, 3, 4, 7];
diff = A.filter(function(x) { return B.indexOf(x) < 0 })
console.log(diff);
Updated to ES6:
A = [1, 2, 3, 4];
B = [1, 3, 4, 7];
diff = A.filter(x => !B.includes(x) );
console.log(diff);
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Select 50 items from list at random to write to file
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edited Sep 26 '18 at 13:29
edge-case
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answered Mar...
What does “%” (percent) do in PowerShell?
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3 Answers
3
Active
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getResourceAsStream() vs FileInputStream
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BalusCBalusC
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MySQL get the date n days ago as a timestamp
In MySQL, how would I get a timestamp from, say 30 days ago?
3 Answers
3
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Difference between toFixed() and toPrecision()?
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134
toFixed(n) provides n length after the decimal point; toPrecision(x) provides x total length.
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How to check if there exists a process with a given pid in Python?
...ndon Rhodes
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answered Feb 20 '09 at 4:31
mluebkemluebke
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