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How to check if an element is in an array
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Swift 2, 3, 4, 5:
let elements = [1, 2, 3, 4, 5]
if elements.contains(5) {
print("yes")
}
contains() is a protocol extension method of SequenceType (for sequences of Equatable elements) and not a global method as in
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How should I read a file line-by-line in Python?
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edited Jun 25 '18 at 6:33
Eric Platon
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How do I explicitly specify a Model's table-name mapping in Rails?
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437
Rails >= 3.2 (including Rails 4+ and 5+):
class Countries < ActiveRecord::Base
self.ta...
How can I check if a string represents an int, without using try/except?
Is there any way to tell whether a string represents an integer (e.g., '3' , '-17' but not '3.14' or 'asfasfas' ) Without using a try/except mechanism?
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Get value from NSTextField
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jscs
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answered Jun 12 '09 at 5:55
toholiotoholio...
Objective-C Split()?
...nts[0];
(https://developer.apple.com/documentation/foundation/nsstring/1413214-componentsseparatedbystring)
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What does @hide mean in the Android source code?
For the Activity source code , line 3898 (close to the bottom):
3 Answers
3
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Read .mat files in Python
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edited Jul 24 '19 at 20:23
user8408080
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answered Ma...
how to permit an array with strong parameters
I have a functioning Rails 3 app that uses has_many :through associations which is not, as I remake it as a Rails 4 app, letting me save ids from the associated model in the Rails 4 version.
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