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NSAttributedString add text alignment
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39
As NSAttributedString is primarily used with Core Text on iOS, you have to use CTParagraphStyle...
Test if string is a number in Ruby on Rails
...at(string) rescue false
end
And then call it like this:
my_string = '12.34'
is_number?( my_string )
# => true
Extend String Class.
If you want to be able to call is_number? directly on the string instead of passing it as a param to your helper function, then you need to define is_number? a...
Google Play on Android 4.0 emulator
... URL is broken :(
– TheDude
Feb 7 '13 at 9:01
16
the -partition-size param is important, without ...
What is the exact meaning of IFS=$'\n'?
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edited Apr 3 '17 at 16:15
mikemaccana
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How to check whether a Storage item is set?
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13 Answers
13
Active
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Xcode 4.2 debug doesn't symbolicate stack call
...all (there can be only one handler for your entire app). For example, some 3rd party libraries set their own uncaughtExceptionHandler. So, try setting it at the END of your didFinishLaunchingWithOptions function (or selectively disabling 3rd party libraries). Or better yet, set a symbolic break poin...
(How) can I count the items in an enum?
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123
There's not really a good way to do this, usually you see an extra item in the enum, i.e.
enum ...
Is there a way to measure how sorted a list is?
...ple sequence 9, 5, 7, 6. This sequence has the inversions (0,1), (0,2), (0,3), (2,3) and the inversion number 4.
If you want a value between 0 and 1, you can divide the inversion number by N choose 2.
To actually create an algorithm to compute this score for how sorted a list is, you have two approa...
Print current call stack from a method in Python code
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333
Here's an example of getting the stack via the traceback module, and printing it:
import trac...
Adjusting the Xcode iPhone simulator scale and size [duplicate]
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edited Sep 4 at 21:31
Jean-François Fabre♦
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