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“f” after number
...ugh to convert them to float at compile time, and would slow the execution down with four int->float conversions (that are among the slowest casts). Although in this case is almost unimportant, it's always better to specify correctly f if needed: in an expression a constant without the right spec...
Pythonic way to print list items
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Why the downvote, is it really due to the speed difference between map() and a generator? Python's creator also happens to prefer comprehensions and generators over map().
– Andrew Clark
Apr 2 ...
Should try…catch go inside or outside a loop?
...avaworld/jw-01-1997/jw-01-hood.html
The table is described about half-way down.
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Underscore vs Double underscore with variables and methods [duplicate]
...vate just becomes MyClass._MyClass__private. (Note that
even this breaks down for subclasses with the same name as the
superclass, e.g. subclasses in different modules.) It is possible to
access __private names from outside their class, just inconvenient and
fragile (it adds a dependency on ...
What is the difference between “Flush Magento Cache” and “Flush Cache Storage” in magento's cache ma
... them. I tend to use the second button when I'm having difficulty tracking down the cause of a problem.
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How do I get a background location update every n minutes in my iOS application?
...ate.
Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
*/
NSLog(@"to background");
app.isInBackground = TRUE;
UIApplication *app = [UIApplication sharedApplication];
// Request permission to run in t...
How to check null objects in jQuery
...
(Since I don't seem to have enough reputation to vote down the answer...)
Wolf wrote:
Calling length property on undefined
or a null object will cause IE and
webkit browsers to fail!
Instead try this:
// NOTE!! THE FOLLOWING IS WRONG; DO NOT USE! -- EleotleCram
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Convert a python dict to a string and back
...ule as well. Both json and pickle seem easy enough to use, so it will come down to things such as cross-platform support. Thanks
– AJ00200
Dec 28 '10 at 16:11
5
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Get an object's class name at runtime
...sing the constructor.name on something that might potentially get minified down the road is just begging for a headache.
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Ruby on Rails generates model field:type - what are the options for field:type?
... |t|
t.references :car
t.timestamps
end
end
def self.down
drop_table :wheels
end
end
When you run the migration, the following will end up in your db/schema.rb:
$ rake db:migrate
create_table "wheels", :force => true do |t|
t.integer "car_id"
t.datetime "creat...