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count the frequency that a value occurs in a datafram>me m> column
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13 Answers
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ggplot2 plot without axes, legends, etc
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As per my comm>me m>nt in Chase's answer, you can remove a lot of this stuff using elem>me m>nt_blank:
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Get value of a string after last slash in JavaScript
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10 Answers
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Is it possible to modify variable in python that is in outer, but not global, scope?
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Python 3.x has the nonlocal keyword. I think this does what you want, but I'm not sure if you...
Pandas groupby: How to get a union of strings
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In [4]: df = read_csv(StringIO(data),sep='\s+')
In [5]: df
Out[5]:
A B C
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How do I extract a sub-hash from a hash?
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16 Answers
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What's the difference between console.dir and console.log?
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You can also see a clear difference with arrays (e.g., console.dir([1,2,3])) which are logged differently from normal objects:
> console.log([1,2,3])
[1, 2, 3]
> console.dir([1,2,3])
* Array[3]
0: 1
1: 2
2: 3
length: 3
* __proto__: Array[0]
concat: function...
What is the most efficient way to concatenate N arrays?
...oncat() is the way to go for convenience and likely performance.
var a = [1, 2], b = ["x", "y"], c = [true, false];
var d = a.concat(b, c);
console.log(d); // [1, 2, "x", "y", true, false];
For concatenating just two arrays, the fact that push accepts multiple argum>me m>nts consisting of elem>me m>nts to ...