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How to check if a table contains an element in Lua?
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You can put the values as the table's keys. For example:
function addToSet(set, key)
set[key] = true
end
function removeFromSet(set, key)
set[key] = nil
end
function setContains(set, key)
return set[key] ~= nil
end...
Does ARC support dispatch queues?
...0.8 or later
ARC will manage your queue for you. You do not need to (and cannot) use dispatch_retain or dispatch_release if ARC is enabled.
Details
Starting in the iOS 6.0 SDK and the Mac OS X 10.8 SDK, every dispatch object (including a dispatch_queue_t) is also an Objective-C object. This is ...
Pass parameter to fabric task
How can I pass a parameter to a fabric task when calling "fab" from the command line? For example:
5 Answers
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What is the difference between the mouseover and mouseenter events?
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You can try out the following example from the jQuery doc page. It's a nice little, interactive demo that makes it very clear and you can actually see for yourself.
var i = 0;
$("div.overout")
.mouseover(function() {
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How do I set the path to a DLL file in Visual Studio?
I developed an application that depends on a DLL file. When I debug my application, the applicationwould complain that:
6...
How do I find if a string starts with another string in Ruby?
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Interestingly, Rails defines the grammaticaly correct starts_with?, which in 1.8.7 and above is just aliased to start_with?.
– Mark Thomas
Nov 13 '10 at 14:57
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How to get the currently logged in user's user id in Django?
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First make sure you have SessionMiddleware and AuthenticationMiddleware middlewares added to your MIDDLEWARE_CLASSES setting.
The current user is in request object, you can get it by:
def sample_view(request):
current_user = request.user
print current_user.id
request...
How do I run a single test with Nose in Pylons
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It would be worth note that for calling parameterized tests (the ones that use @parameterized.expand) you have to use this syntax: test_file.py:ClassNameInFile.MethodName_TestNumber, where TestNumber could be 1, 2, 3, ... one per parametrized test
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How to apply a style to an embedded SVG?
...an SVG is directly included in a document using the <svg> tag, you can apply CSS styles to the SVG via the document's stylesheet. However, I am trying to apply a style to an SVG which is embedded (using the <object> tag).
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Convert UTC to local time in Rails 3
I'm having trouble converting a UTC Time or TimeWithZone to local time in Rails 3.
6 Answers
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