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edited Aug 20 '09 at 2:33
answered Aug 18 '09 at 19:51
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How to start two threads at “exactly” the same time
The threads should start at same split second. I understand, if you do thread1.start() , it will take some milliseconds before the next execution of thread2.start() .
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Why use the INCLUDE clause when creating an index?
...level, rather than in the index tree.
This makes the index smaller because it's not part of the tree
INCLUDE columns are not key columns in the index, so they are not ordered.
This means it isn't really useful for predicates, sorting etc as I mentioned above. However, it may be useful if you have a...
How do I get a background location update every n minutes in my iOS application?
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I found a solution to implement this with the help of the Apple Developer Forums:
Specify location background mode
Create an NSTimer in the background with UIApplication:beginBackgroundTaskWithExpirationHandler:
When n is smaller than UIApplication:backgroundTi...
How do I scroll the UIScrollView when the keyboard appears?
I'm having trouble with my code. I'm trying to move the UIScrollView when I'm editing an UITextField that should be hidden by the keyboard pop.
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Changing variable names in Vim
...sor to the variable usage. Press gd. Which means - move cursor to the definition.
Now Press [{ - this will bring you to the scope begin.
Press V - will turn on Visual Line selection.
Press % - will jump to the opposite } thus will select the whole scope.
Press :s/ - start of the substitute command.
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How to reference style attributes from a drawable?
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In my experience it is not possible to reference an attribute in an XML drawable.
In order to make your theme you need to:
Create one XML drawable per theme.
Include the needed color into you drawable directly with the @color tag or #RGB fo...
event.preventDefault() vs. return false
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return false from within a jQuery event handler is effectively the same as calling both e.preventDefault and e.stopPropagation on the passed jQuery.Event object.
e.preventDefault() will prevent the default event from occuring, e.stopPropagati...
Using Python 3 in virtualenv
Using virtualenv , I run my projects with the default version of Python (2.7). On one project, I need to use Python 3.4.
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What's the pythonic way to use getters and setters?
I'm doing it like:
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