大约有 19,000 项符合查询结果（耗时：0.0302秒） [XML]
Regular Expression for alphanumeric and underscores
...and form for [a-zA-Z0-9_]. In the .NET regex language, you can turn on ECMAScript behavior and use \w as a shorthand (yielding ^\w*$ or ^\w+$). Note that in other languages, and by default in .NET, \w is somewhat broader, and will match other sorts of Unicode characters as well (thanks to Jan for po...
Why am I seeing an “origin is not allowed by Access-Control-Allow-Origin” error here? [duplicate]
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Javascript is limited when making ajax requests outside of the current domain.
Ex 1: your domain is example.com and you want to make a request to test.com => you cannot.
Ex 2: your domain is example.com and you want to ...
What is the meaning and difference between subject, user and principal?
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@T.Rob do you any paper titles, or authoritative references that you can share.
– ams
Feb 17 '11 at 16:21
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Extract substring in Bash
...mmand or something. Looking at it in the history, I was running it in a sh script, which was probably dash. At this point I can't get it to work anymore.
– Spencer Rathbun
Oct 29 '13 at 17:52
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Fatal error in launcher: Unable to create process using “”C:\Program Files (x86)\Python33\python.exe
... how I solved it:
open pip.exe in 7zip and extract __main__.py to Python\Scripts folder.
In my case it was C:\Program Files (x86)\Python27\Scripts
Rename __main__.py to pip.py
Run it! python pip.py install something
EDIT:
If you want to be able to do pip install something from anywhere, do thi...
Python: json.loads returns items prefixing with 'u'
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I suggest every newbie simply try out this script and voila you have yourself a script to convert ~from~ u'JSON output :) ... if one can only add stdin to the script , and json format at the end, you're ready to go!
– Jordan Gee
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Is there a Unix utility to prepend timestamps to stdin?
I ended up writing a quick little script for this in Python, but I was wondering if there was a utility you could feed text into which would prepend each line with some text -- in my specific case, a timestamp. Ideally, the use would be something like:
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How do I remove packages installed with Python's easy_install?
... Probably worth mentioning that this method may leave stray data_files and scripts (and possibly other file categories) on the system. The egg's EGG-INFO/SOURCES.txt contains a list of all package files and sources, but not data_files, which can be installed into any arbitrary directory on your syst...
SVN: Is there a way to mark a file as “do not commit”?
...commit!
I work on the linux command-line: so my solution is to create a script /usr/bin/svnn (yes, with two 'n's!) as follows:
#! /bin/bash
DIR=/home/mike/dev/trunk
IGNORE_FILES="\
foo/pom.xml \
foo/src/gwt/App.gwt.xml \
foo/src/main/java/gwt/Common.gwt.xml \
foo...
Selecting last element in JavaScript array [duplicate]
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@LeviMorrison: Your answer is more about organizing the script / project, not about solving this specific issue. Adding (custom) function to the prototype may not be so clean, but let's be honest: arr[arr.length - 1] is the common and well-understood way of accessing last element ...