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What is the difference between pluck and collect in Rails?
...ck(:id, :name)?
– Alexander
Dec 10 '14 at 15:03
@AlexPopov - Rails 4+ supports plucking multiple fields, Rails 3 does ...
Difference between ProcessBuilder and Runtime.exec()
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edited Oct 17 '14 at 22:38
answered Jul 28 '11 at 9:18
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matplotlib colorbar for scatter
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edited Apr 17 '15 at 16:14
Christian Herenz
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answered May 19 '11 ...
What is the easiest way to push an element to the beginning of the array?
...n years! :-)
– konung
Jul 29 '13 at 14:07
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show 3 more comments
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Is there a way to tell git to only include certain files instead of ignoring certain files?
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answered Aug 14 '09 at 19:23
T.E.D.T.E.D.
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What happens with constraints when a view is removed
...dously helpful!
– race_carr
Mar 21 '14 at 17:46
1
@pnollet, I don't know why the poster in that q...
iterating over each character of a String in ruby 1.8.6 (each_char)
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answered Jul 2 '14 at 9:31
sschuberthsschuberth
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invalid multibyte char (US-ASCII) with Rails and Ruby 1.9
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ShamuShamu
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Flexbox not giving equal width to elements
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edited Jul 31 '14 at 19:06
answered Jul 31 '14 at 18:57
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How to extract a floating number from a string [duplicate]
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>>> re.findall(r"[-+]?\d*\.\d+|\d+", "Current Level: -13.2 db or 14.2 or 3")
['-13.2', '14.2', '3']
If you want to validate user input, you could alternatively also check for a float by stepping to it directly:
user_input = "Current Level: 1e100 db"
for token in user_input.split():
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