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How to escape the % (percent) sign in C's printf?
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You can escape it by posting a double '%' like this: %%
Using your example:
printf("hello%%");...
Test if string is a number in Ruby on Rails
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12 Answers
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What is the difference between active and passive FTP?
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paxdiablopaxdiablo
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Can Python test the membership of multiple values in a list?
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203
This does what you want, and will work in nearly all cases:
>>> all(x in ['b', 'a', ...
C# Convert List to Dictionary
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250
Try this:
var res = list.ToDictionary(x => x, x => x);
The first lambda lets you pick...
Convert a matrix to a 1 dimensional array
I have a matrix (32X48).
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Find a Git branch containing changes to a given file
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edited Mar 28 '17 at 1:10
BMW
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What does addChildViewController actually do?
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I was wondering about this question too. I watched Session 102 of the WWDC 2011 videos and Mr. View Controller, Bruce D. Nilo, said this:
viewWillAppear:, viewDidAppear:, etc have nothing to do with addChildViewController:. All that addChildViewController: does is to say "This view...