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How do I declare class-level properties in Objective-C?
...mething that's equivalent to a static variable? E.g. only one instance for all types of Foo?
To declare class functions in Objective-C you use the + prefix instead of - so your implementation would look something like:
// Foo.h
@interface Foo {
}
+ (NSDictionary *)dictionary;
// Foo.m
+ (NSDicti...
How do I get the function name inside a function in PHP?
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edited Apr 11 '18 at 16:17
totymedli
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'float' vs. 'double' precision
...cand, and an exponent.
Because of this encoding, many numbers will have small changes to allow them to be stored.
Also, the number of significant digits can change slightly since it is a binary representation, not a decimal one.
Single precision (float) gives you 23 bits of significand, 8 bits of...
Escaping single quote in PHP when inserting into MySQL [duplicate]
...e it again, the string you get back from the database will not be automatically escaped for you. You'll get back "O'Brien". So, you will need to pass it through mysql_real_escape_string().
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Android OpenGL ES and 2D
...ur canvas with the proper GL flags for 2D (sprite) rendering.
You should really take a look at SpriteMethodTest by the same author of replica island: http://code.google.com/p/apps-for-android/source/browse/trunk/SpriteMethodTest
See this question where I posted my own code: Using OpenGL to replace ...
How do I auto size a UIScrollView to fit its content
...careful when Scroll Indicators are enabled! a UIImageView will be automatically created for each one by the SDK. you must account for it or else your content size will be wrong. ( see stackoverflow.com/questions/5388703/… )
– AmitP
Oct 26 '14 at 15:58
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How can I count the occurrences of a list item?
...1, 4, 1].count(1)
3
Don't use this if you want to count multiple items. Calling count in a loop requires a separate pass over the list for every count call, which can be catastrophic for performance. If you want to count all items, or even just multiple items, use Counter, as explained in the othe...
A cron job for rails: best practices?
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I'm using the rake approach (as supported by heroku)
With a file called lib/tasks/cron.rake ..
task :cron => :environment do
puts "Pulling new requests..."
EdiListener.process_new_messages
puts "done."
end
To execute from the command line, this is just "rake cron". This command ...
Difference between private, public, and protected inheritance
All of the questions I've found on SO deal with specific cases.
16 Answers
16
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Facebook API - How do I get a Facebook user's profile image through the Facebook API (without requir
...m/users_unique_url ). How can I accomplish this? Is there a Faceboook API call that fetches a user's profile image URL without the user needing to Allow the application?
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