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Algorithm to generate all possible permutations of a list?
...n! possible ways to order these elements. What is an algorithm to generate all possible orderings of this list? Example, I have list [a, b, c]. The algorithm would return [[a, b, c], [a, c, b,], [b, a, c], [b, c, a], [c, a, b], [c, b, a]].
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Adding HTML entities using CSS content
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Update: PointedEars mentions that the correct stand in for   in all css situations would be
'\a0 ' implying that the space is a terminator to the hex string and is absorbed by the escaped sequence. He further pointed out this authoritative description which sounds like a good solution to...
Bypass confirmation prompt for pip uninstall
I'm trying to uninstall all django packages in my superuser environment to ensure that all my webapp dependencies are installed to my virtualenv.
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How to change the remote repository for a git submodule?
...th.
If repo history is different then you need to checkout new branch manually:
git submodule sync --recursive
cd <submodule_dir>
git fetch
git checkout origin/master
git branch master -f
git checkout master
share...
Using ECMAScript 6
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In Chrome, most of the ES6 features are hidden behind a flag called "Experimental JavaScript features". Visit chrome://flags/#enable-javascript-harmony, enable this flag, restart Chrome and you will get many new features.
Arrow functions are not yet implemented in V8/Chrome, so this fl...
linux 下巧妙使用squid代理服务器 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...e.log
visible_hostname 192.168.16.1
cache_mgr lindenstar@163.com
acl all src 0.0.0.0/0.0.0.0
http_access allow all
2.2 acl选项的格式如下：
acl列表名称 列表类型 [-i] 列表值
列表名称：用于区分Squid的各个访问控制列表，任何两个访问控制列表不...
Reduce git repository size
... do I reduce my repo size...it's about 10 MB, but the thing is Heroku only allows 50 MB and I'm no where near finished developing my app.
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LINQPad [extension] methods [closed]
...ed queries / samples (for an example, execute a search using Edit | Search All)
Highlight - wraps an object so that it will highlight in yellow when Dumped
HorizontalRun - lets you Dump a series of objects on the same line
LINQPad also provides the HyperLinq class. This has two purposes: the first...
How do I byte-compile everything in my .emacs.d directory?
...rt of provides better defaults and some nice customizations to default install of Emacs.
6 Answers
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Is it possible to install another version of Python to Virtualenv?
I have a shared account in a web-hosting that has Python 2.4 installed, but my code is not compatible with 2.4. Is it possible to install Python 2.6 directly to Virtualenv?
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