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What's the magic of “-” (a dash) in command-line parameters?
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edited Nov 8 '11 at 3:15
answered Nov 8 '11 at 3:09
p...
What is the difference between async.waterfall and async.series
...el, async.waterfall would be for a data pipeline ("given 2, multiply it by 3, add 2, and divide by 17"), while async.series would be for discrete tasks that must be performed in order, but are otherwise separate.
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NSString: isEqual vs. isEqualToString
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isEqual: compares a string to an object, and will return NO if the object is not a string. isEqu...
Default html form focus without JavaScript
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edited Sep 4 '15 at 5:43
jpaugh
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answered Nov ...
Java system properties and environment variables
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edited Apr 13 '17 at 7:57
informatik01
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Comma separator for numbers in R?
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135
You can try either format or prettyNum, but both functions return a vector of characters. I'd o...
What's the effect of adding 'return false' to a click event listener?
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The return value of an event handler determines whether or not the default browser behaviour s...
Assign same value to multiple variables at once?
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Tim CooperTim Cooper
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Can existing virtualenv be upgraded gracefully?
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You can use the Python 2.6 virtualenv to "revirtual" the existing directory. You will have to re...
PHP - Merging two arrays into one array (also Remove Duplicates)
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array_unique(array_merge($array1,$array2), SORT_REGULAR);
http://se2.php.net/manual/en/functi...