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Create a custom callback in JavaScript
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edited May 16 '16 at 5:27
answered Feb 3 '10 at 9:25
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Swift make method parameter mutable?
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edited Mar 6 at 3:13
answered May 3 '16 at 0:43
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Merging dictionaries in C#
...air.Value);
That will throw an exception if you get any duplicate keys.
EDIT: If you use ToLookup then you'll get a lookup which can have multiple values per key. You could then convert that to a dictionary:
var result = dictionaries.SelectMany(dict => dict)
.ToLookup...
How do I create an average from a Ruby array?
... is simply an integer that reflects the sum of all the previous elements.
Edit: Commenter Dave Ray proposed a nice improvement.
Edit: Commenter Glenn Jackman's proposal, using arr.inject(:+).to_f, is nice too but perhaps a bit too clever if you don't know what's going on. The :+ is a symbol; when ...
How to set Python's default version to 3.x on OS X?
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edited Mar 29 at 2:10
John R Perry
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iOS Detect 3G or WiFi
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edited Jun 16 '18 at 4:45
Kevin Ghaboosi
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Rounding float in Ruby
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edited Jan 8 '15 at 0:35
davidsbro
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Understanding the map function
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edited Jun 3 '15 at 13:16
myildirim
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Can I underline text in an Android layout?
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edited Oct 25 '17 at 13:57
Max
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How can I check if a string represents an int, without using try/except?
...t work with '16.0' format, which is similar to int casting in this sense.
edit:
def check_int(s):
if s[0] in ('-', '+'):
return s[1:].isdigit()
return s.isdigit()
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