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What is the fastest method for selecting descendant elements in jQuery?
...rag's revised speed tests here: http://jsfiddle.net/QLV9y/1/
Speed test: (More is Better)
On Chrome, Method 3 is the best then method 1/2 and then 4/5
On Firefox, Method 3 is still best then method 1/2 and then 4/5
On Opera, Method 3 is still best then method 4/5 and then 1/2
On IE 8, whi...
Git 工具 - 子模块(submodule)：一个仓库包含另一个仓库 - 开源 & Github -...
...ff.submodule log
$ git diff
Submodule DbConnector c3f01dc..d0354fc:
> more efficient db routine
> better connection routine
如果在此时提交，那么你会将子模块锁定为其他人更新时的新代码。
如果你不想在子目录中手动抓取与合并，那么还...
How to have no pagebreak after \include in LaTeX
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If I understand it correclty, pagesel is to achieve more than includeonly by allowing fine control which pages are to be included in a final build. Include has a much smaller scope, of including sourcecode in a way that can be switched on and off.
– gsche...
Creating a temporary directory in Windows?
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How to see the changes between two commits without commits in-between?
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How to calculate the time interval between two time strings
...y this -- it's efficient for timing short-term events. If something takes more than an hour, then the final display probably will want some friendly formatting.
import time
start = time.time()
time.sleep(10) # or do something more productive
done = time.time()
elapsed = done - start
print(elaps...
Can iterators be reset in Python?
...d of tee().
Basically, tee is designed for those situation where two (or more) clones of one iterator, while "getting out of sync" with each other, don't do so by much -- rather, they say in the same "vicinity" (a few items behind or ahead of each other). Not suitable for the OP's problem of "red...
How do I make an HTTP request in Swift?
... use the delegate methods to work with the response and data received.
For more detail, check the documentation for the NSURLConnectionDataDelegate protocol
Testing on an Xcode playground
If you want to try this code on a Xcode playground, add import PlaygroundSupport to your playground, as well as ...
How to let PHP to create subdomain automatically for each user?
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The subdomain does look nice. It's going to be a lot more work to set up though because you'll have to make sure that all subdomain requests get handled properly. This isn't terrible with Apache but might be tricky in a hosted environment.
– Mark Biek
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Run batch file as a Windows service
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