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Check whether or not the current thread is the main thread
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If you want a method to be executed on the main thread, you can:
- (void)someMethod
{
dispatch_block_t block = ^{
// Code for the method goes here
};
if ([NSThread isMainThread])
{
block();
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Test if object implements interface
What is the simplest way of testing if an object implements a given interface in C#? (Answer to this question
in Java )
1...
How to convert a Binary String to a base 10 integer in Java
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You need to specify the radix. There's an overload of Integer#parseInt() which allows you to.
int foo = Integer.parseInt("1001", 2);
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How to get the return value from a thread in python?
...processing module has a nice interface for this using the Pool class. And if you want to stick with threads rather than processes, you can just use the multiprocessing.pool.ThreadPool class as a drop-in replacement.
def foo(bar, baz):
print 'hello {0}'.format(bar)
return 'foo' + baz
from mult...
How to write string literals in python without having to escape them?
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If you're dealing with very large strings, specifically multiline strings, be aware of the triple-quote syntax:
a = r"""This is a multiline string
with more than one line
in the source code."""
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jQuery map vs. each
... and each functions seem to do the same thing. Are there any practical differences between the two? When would you choose to use one instead of the other?
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Convert duration to hours:minutes:seconds (or similar) in Rails 3 or Ruby
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Also, if you want this to be very specific and not "round" the duration, check out Radar's gem: github.com/radar/distance_of_time_in_words. Drop-in replacement for distance_of_time_in_words and you can get the rounded number by pas...
Using Rails 3.1 assets pipeline to conditionally use certain css
...re-edit the whole structure again.
What you want to do is use separate manifest files to break things up. First you have to re-organize your app/assets/stylesheets folder:
app/assets/stylesheets
+-- all
+-- your_base_stylesheet.css
+-- print
+-- blueprint
+-- print.css
+-- your...
Why is there no tuple comprehension in Python?
...n is just syntactic sugar to use a generator expression that outputs a specific type. list(i for i in (1, 2, 3)) is a generator expression that outputs a list, set(i for i in (1, 2, 3)) outputs a set. Does that mean the comprehension syntax is not needed? Perhaps not, but it is awfully handy. For th...
Submit form with Enter key without submit button? [duplicate]
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$("input").keypress(function(event) {
if (event.which == 13) {
event.preventDefault();
$("form").submit();
}
});
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