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Are Swift variables atomic?
...ditional keywords (similar to @lazy) might be introduced later on.
Update 07/20/15: according to this blogpost on singletons swift environment can make certain cases thread safe for you, i.e.:
class Car {
static let sharedCar: Car = Car() // will be called inside of dispatch_once
}
private le...
Xcode 4 - “Valid signing identity not found” error on provisioning profiles on a new Macintosh insta
...rt/import sequence.
Picture for XCode 4.6 added by WP
Edit for XCode 5.0 or newer:
Open XCode -> Preferences ('Command' + ',')
Select the Apple ID from the list.
Click on the SETTING icon near the bottom-left corner of window, and choose EXPORT ACCOUNTS... Xcode asks you to choose a file n...
Make outer div be automatically the same height as its floating content
...to wrap its div s floating within it. I dont want to use style='height: 200px in the div with the outerdiv id as I want it to be automatically the height of its content (eg, the floating div s).
...
Understanding ibeacon distancing
...ue documentation on how far exactly an ibeacon can measure. Lets say I am 300 feet away...is it possible for an ibeacon to detect this?
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Reflection: How to Invoke Method with parameters
...
10 Answers
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Reorder levels of a factor without changing order of values
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edited Mar 20 '16 at 11:39
Henrik
52.1k1111 gold badges117117 silver badges134134 bronze badges
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Counting null and non-null values in a single query
... it to work on another RDBMS):
select sum(case when a is null then 1 else 0 end) count_nulls
, count(a) count_not_nulls
from us;
Or:
select count(*) - count(a), count(a) from us;
share
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How to remove CocoaPods from a project?
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1036
Removing CocoaPods from a project is possible, but not currently automated by the CLI. First t...
Python vs Cpython
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered Jun 16 '13 at 7:02
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How to convert a string with comma-delimited items to a list in Python?
...e shell.
– A. Wilson
Jan 25 '13 at 20:19
3
eval('[' + text + ']') will treat a,b,c as variables, ...