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Adding devices to team provisioning profile
...matic device provisioning isn't as easy turning it on/off but you can read more here: developer.apple.com/library/ios/qa/qa1814/_index.html
– thattyson
Nov 11 '15 at 0:13
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Git and Mercurial - Compare and Contrast
...rkdown
Repository structure: Mercurial doesn't allow octopus merges (with more than two parents), nor tagging non-commit objects.
Tags: Mercurial uses versioned .hgtags file with special rules for per-repository tags, and has also support for local tags in .hg/localtags; in Git tags are refs residi...
Python Create unix timestamp five minutes in the future
...imedelta(minutes=5)
return calendar.timegm(future.timetuple())
It's also more portable than %s flag to strftime (which doesn't work on Windows).
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How to determine if a record is just created or updated in after_save
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How to run a method every X seconds
...tion manifest or via context.registerReceiver(receiver,filter); method For more information on Broadcast Receivers please refer to official Docs. Broadcast Receiver.
public class MyReceiver extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent)
{
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What are the Dangers of Method Swizzling in Objective-C?
...hat sharp knives are safer.
Method swizzling can be used to write better, more efficient, more maintainable code. It can also be abused and lead to horrible bugs.
Background
As with all design patterns, if we are fully aware of the consequences of the pattern, we are able to make more informed de...
PostgreSQL Crosstab Query
...list anyway (except for pre-defined crosstabN() variants), it is typically more efficient to provide a short list in a VALUES expression like demonstrated:
$$VALUES ('Active'::text), ('Inactive')$$)
Or (not in the manual):
$$SELECT unnest('{Active,Inactive}'::text[])$$ -- short syntax for long ...
Useful code which uses reduce()? [closed]
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Simple Pivot Table to Count Unique Values
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251
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Returning first x items from array
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