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How to tell if UIViewController's view is visible
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1109
The view's window property is non-nil if a view is currently visible, so check the main view in...
How to read a file without newlines?
...not already present
f.write('\n')
f.flush()
f.seek(0)
lines = [line[:-1] for line in f]
Or a simpler alternative is to strip the newline instead:
[line.rstrip('\n') for line in file]
Or even, although pretty unreadable:
[line[:-(line[-1] == '\n') or len(line)+1] for...
Set up a scheduled job?
...ter version of windows the at command is deprecated for Windows 8, Server 2012 and above. You can use schtasks.exe for same use.
**** UPDATE ****
This the new link of django doc for writing the custom management command
sha...
How to load db:seed data into test database automatically?
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120
The db:seed rake task primarily just loads the db/seeds.rb script. Therefore just execute that f...
How do I return early from a rake task?
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edited Jun 19 '10 at 7:25
pupeno
246k110110 gold badges310310 silver badges500500 bronze badges
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Eclipse IDE: How to zoom in on text?
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105
There is a project from a guy called 'tarlog' that made a plugin for eclipse at this google cod...
Run a single migration file
...irectly out of the ruby file:
rails console
>> require "db/migrate/20090408054532_add_foos.rb"
>> AddFoos.up
Note: newer versions of rails may require AddFoos.new.up rather than AddFoos.up.
An alternative way (without IRB) which relies on the fact that require returns an array of cla...
Does a javascript if statement with multiple conditions test all of them?
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answered Dec 18 '09 at 20:28
Anon.Anon.
49.5k88 gold badges7373 silver badges8383 bronze badges
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Why should hash functions use a prime number modulus?
...you're back where you started. The case you most want to avoid is stride = 0, of course, which must be special-cased, but to avoid also special-casing bucket_count / stride equal to a small integer, you can just make the bucket_count prime and not care what the stride is provided it isn't 0.]
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