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Is PHP's count() function O(1) or O(n) for arrays?
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Cannot miss to vote up for someone looking for the answer in the PHP's source code :)
– Lamy
Jul 17 '12 at 13:24
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Is onload equal to readyState==4 in XMLHttpRequest?
...al clear separation between XHR 1 and XHR 2 anymore, they have merged into one standard. The most common feature that represents XHR 2 is CORS support so from that standpoint XHR 2 didn't appear in IE until IE 10 but XHR.onload was supported in IE 9 which is typically believed to be XHR 1.
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Android Task Affinity Explanation
What exactly is the attribute taskAffinity used for? I have gone through the documentation but I couldn't understand much.
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How do I move the turtle in LOGO? [closed]
...issuing commands in the correct syntax. E.G.:
forward 100
There is only one necessary command to move the turtle. It is forward which has the mnemonic fd. When working with a robot (real) turtle as opposed to a graphics based (virtual) one, you might find that the turning commands left and right ...
What does $$ (dollar dollar or double dollar) mean in PHP?
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The inner $ resolves the a variable to a string, and the outer one resolves a variable by that string.
So, consider this example
$inner = "foo";
$outer = "inner";
The variable:
$$outer
would equal the string "foo"
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Why doesn't JavaScript support multithreading?
...ncy issues in existing web pages. All Chrome does is separate multiple components (different tabs, plug-ins, etcetera) into separate processes, but I can’t imagine a single page having more than one JavaScript thread.
You can however use, as was suggested, setTimeout to allow some sort of schedul...
Make a div fill the height of the remaining screen space
... thing and it appears not possible with css? I'm not sure but regardless none of the other tons of solutions do what you've described. The javascript one is the only one that works correctly at this point.
– Travis
May 4 '10 at 20:00
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Why is the Windows cmd.exe limited to 80 characters wide?
...wered Nov 25 '08 at 23:55
ericksonerickson
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Performing user authentication in Java EE / JSF using j_security_check
...authentication for a web application making use of JSF 2.0 (and if any components do exist) and Java EE 6 core mechanisms (login/check permissions/logouts) with user information hold in a JPA entity. The Oracle Java EE tutorial is a bit sparse on this (only handles servlets).
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Is there any way to not return something using CoffeeScript?
...nerate different javascript. Using "Try Coffeescript" at coffeescript.org, one can see that explicitly including "return" in coffeescript removes the return from the javascript; whereas, with "undefined", the javascript function ends with "return void 0;"
– Daniel
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