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git - diff of current changes before committing
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How to sort a list in Scala by two fields?
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217
rows.sortBy(r => (r.lastName, r.firstName))
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对外网用户的squid代理+认证 - 更多技术 - 清泛网 - 专注C/C++及内核技术
对外网用户的squid代理+认证FreeBSD6 2+Squid2 6架设对外网用户的squid代理+认证服务器架设一台代理，提供对外网用户的代理请求，端口仍然为3128，加入Squid认证功能。 FreeBSD6.2+Squid2.6架设“对外网用户的squid代理+认证”服务器架设...
Rollback a Git merge
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edited May 23 '17 at 12:10
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answered Jul 30 '12 at 13:32
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Paperclip::Errors::MissingRequiredValidatorError with Rails 4
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Node.js - Find home directory in platform agnostic way
Process.platform returns "win32" for Windows. On Windows a user's home directory might be C:\Users[USERNAME] or C:\Documents and Settings[USERNAME] depending on which version of Windows is being used. On Unix this isn't an issue.
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Add a fragment to the URL without causing a redirect?
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edited May 16 '12 at 0:01
answered Nov 26 '10 at 2:04
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Pandas aggregate count distinct
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How about either of:
>>> df
date duration user_id
0 2013-04-01 30 0001
1 2013-04-01 15 0001
2 2013-04-01 20 0002
3 2013-04-02 15 0002
4 2013-04-02 30 0002
>>> df.groupby("date").agg({"duration": np.sum, "user_id": ...
What is the preferred syntax for initializing a dict: curly brace literals {} or the dict() function
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Curly braces. Passing keyword arguments into dict(), though it works beautifully in a lot of s...
Convert object to JSON in Android
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Most people are using gson : check this
Gson gson = new Gson();
String json = gson.toJson(myO...