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Why is arr = [] faster than arr = new Array?
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answered Sep 10 '11 at 23:51
Roger PoonRoger Poon
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What size should TabBar images be?
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30x30 is points, which means 30px @1x, 60px @2x, not somewhere in-between. Also, it's not a great idea to embed the title of the tab into the image—you're going to have pretty poor accessibility and localization results like that.
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What is digest authentication?
...03 Forbidden (access denied).
Digest authentication is standardized in RFC2617. There's a nice overview of it on Wikipedia:
You can think of it like this:
Client makes request
Client gets back a nonce from the server and a 401 authentication request
Client sends back the following response arra...
What is the boundary in multipart/form-data?
...you want to send the following data to the web server:
name = John
age = 12
using application/x-www-form-urlencoded would be like this:
name=John&age=12
As you can see, the server knows that parameters are separated by an ampersand &. If & is required for a parameter value then it ...
Why cast an unused function parameter value to void?
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Where does the “flatmap that s***” idiomatic expression in Scala come from?
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edited Jul 6 '14 at 3:22
Abe Voelker
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Difference between subprocess.Popen and os.system
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If you check out the subprocess section of the Python docs, you'll notice there is an example of...
Unpivot with column name
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Your query is very close. You should be able to use the following which includes the subject i...
What does the `#` operator mean in Scala?
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To explain it, we first have to explain nested classes in Scala. Consider this simple example:...
onNewIntent() lifecycle and registered listeners
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