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What are the most common non-BMP Unicode characters in actual use? [closed]
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“for” vs “each” in Ruby
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316
This is the only difference:
each:
irb> [1,2,3].each { |x| }
=> [1, 2, 3]
irb> x
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How do I fetch lines before/after the grep result in bash?
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Jon LinJon Lin
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How can I strip the whitespace from Pandas DataFrame headers?
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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
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How to paste text to end of every line? Sublime 2
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YohannYohann
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input() error - NameError: name '…' is not defined
...on 2.7, which will not evaluate the read strings.
If you are using Python 3.x, raw_input has been renamed to input. Quoting the Python 3.0 release notes,
raw_input() was renamed to input(). That is, the new input() function reads a line from sys.stdin and returns it with the trailing newline st...
Map over object preserving keys
...ap the values and preserve the keys.
_.mapObject({ one: 1, two: 2, three: 3 }, function (v) { return v * 3; });
// => { one: 3, two: 6, three: 9 }
DEMO
With Lodash
Lodash provides a function _.mapValues to map the values and preserve the keys.
_.mapValues({ one: 1, two: 2, three: 3 }, fu...
(How) can I count the items in an enum?
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123
There's not really a good way to do this, usually you see an extra item in the enum, i.e.
enum ...