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Test if string is a number in Ruby on Rails
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187
Create is_number? Method.
Create a helper method:
def is_number? string
true if Float(stri...
How to check if Location Services are enabled?
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answered Apr 25 '12 at 8:18
Shankar AgarwalShankar Agarwal
38.1k88 gold badges6767 silver badges6666 bronze badges
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Await on a completed task same as task.Result?
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– Stephen Cleary
Sep 15 '17 at 11:08
2
> "Wait is only correct if you're absolutely sure that...
How can I declare and define multiple variables in one line using C++?
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JoshJosh
4,68711 gold badge1818 silver badges2424 bronze badges
add a com...
mysql Foreign key constraint is incorrectly formed error
... future!
– cbloss793
Sep 23 '15 at 18:35
10
In my case it was because of different Encoding and C...
How to return smart pointers (shared_ptr), by reference or by value?
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Ray Hulha
8,41955 gold badges4040 silver badges4242 bronze badges
answered May 17 '12 at 21:13
In silicoIn sili...
Should I pass an std::function by const-reference?
...of the copy operation.
– ceztko
May 8 '17 at 13:59
2
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How to get the size of a JavaScript object?
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184
I have re-factored the code in my original answer. I have removed the recursion and removed the...
Require either of two arguments using argparse
... guessed it was so easy! Love you Python 3.6!
– bjd2385
Apr 30 '17 at 5:09
Who's Christian Witts and where's his answe...