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JavaScript “new Array(n)” and “Array.prototype.map” weirdness
...bserved this in Firefox-3.5.7/Firebug-1.5.3 and Firefox-3.6.16/Firebug-1.6.2
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Make sure only a single instance of a program is running
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What is the >>>= operator in C?
...ply 0.
Meanwhile, 0X.1P1 is a hexadecimal floating point literal equal to 2/16 = 0.125. In any case, being non-zero, it's also true as a boolean, so negating it twice with !! again produces 1. Thus, the whole thing simplifies down to:
while( a[0] >>= a[1] )
The operator >>= is a co...
Connect to a locally built Jekyll Server using mobile devices in the LAN
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Converting a column within pandas dataframe from int to string
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In [16]: df = DataFrame(np.arange(10).reshape(5,2),columns=list('AB'))
In [17]: df
Out[17]:
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How many bytes does one Unicode character take?
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Move the most recent commit(s) to a new branch with Git
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Moving t...
Get names of all files from a folder with Ruby
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edited Nov 18 '09 at 13:02
Mike Woodhouse
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a...
Set a persistent environment variable from cmd.exe
...s' that are displayed if you print the usage (setx /?), in particular:
2) On a local system, variables created or modified by this tool will be available in future command windows but not in the current CMD.exe command window.
3) On a remote system, variables created or modified by this too...
How to combine multiple conditions to subset a data-frame using “OR”?
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my.data.frame <- subset(data , V1 > 2 | V2 < 4)
An alternative solution that mimics...