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Why doesn't Java Map extend Collection?
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From the Java Collections API Design FAQ:
Why doesn't Map extend Collection?
This was by design. We feel that
mappings are not collections and
collections are not mappings. Thus, it
makes little sense for Map to extend
the Collection interface (or vice
versa).
If ...
How to check whether an object has certain method/property?
...roperty using the dynamic keyword, right? How to check whether the method exist before calling myDynamicObject.DoStuff(), for example?
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Most tricky/useful commands for gdb debugger [closed]
...our most tricky and useful commands while you run a debugger like gdb or dbx.
12 Answers
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List files ONLY in the current directory
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Just use os.listdir and os.path.isfile instead of os.walk.
Example:
import os
files = [f for f in os.listdir('.') if os.path.isfile(f)]
for f in files:
# do something
But be careful while applying this to other directory, like
files = [f for f in os.listdir(somedir) if os.p...
Substitute multiple whitespace with single whitespace in Python [duplicate]
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' '.join(mystring.split())
The split and join perform the task you're explicitly asking about -- plus, they also do the extra one that you don't talk about but is seen in your example, removing trailing spaces;-).
share
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Nginx url重写rewrite实例详解 - 更多技术 - 清泛网移动版 - 专注IT技能提升
Nginx url重写rewrite实例详解Nginx_url_rewrite在nginx中实现url重写，学习rewrite的具体用法，包括301重定向的内容等，希望对大家有所帮助。nginx rewrite 实现二级域名跳转
当访问http://www.jbyuan.com跳转到http://www.jbyuan.com/nvxingjiankang/
方法...
Nginx url重写rewrite实例详解 - 更多技术 - 清泛网移动版 - 专注IT技能提升
Nginx url重写rewrite实例详解Nginx_url_rewrite在nginx中实现url重写，学习rewrite的具体用法，包括301重定向的内容等，希望对大家有所帮助。nginx rewrite 实现二级域名跳转
当访问http://www.jbyuan.com跳转到http://www.jbyuan.com/nvxingjiankang/
方法...
Nginx url重写rewrite实例详解 - 更多技术 - 清泛网移动版 - 专注IT技能提升
Nginx url重写rewrite实例详解Nginx_url_rewrite在nginx中实现url重写，学习rewrite的具体用法，包括301重定向的内容等，希望对大家有所帮助。nginx rewrite 实现二级域名跳转
当访问http://www.jbyuan.com跳转到http://www.jbyuan.com/nvxingjiankang/
方法...
Nginx url重写rewrite实例详解 - 更多技术 - 清泛网移动版 - 专注IT技能提升
Nginx url重写rewrite实例详解Nginx_url_rewrite在nginx中实现url重写，学习rewrite的具体用法，包括301重定向的内容等，希望对大家有所帮助。nginx rewrite 实现二级域名跳转
当访问http://www.jbyuan.com跳转到http://www.jbyuan.com/nvxingjiankang/
方法...
Nginx url重写rewrite实例详解 - 更多技术 - 清泛网移动版 - 专注C++内核技术
Nginx url重写rewrite实例详解Nginx_url_rewrite在nginx中实现url重写，学习rewrite的具体用法，包括301重定向的内容等，希望对大家有所帮助。nginx rewrite 实现二级域名跳转
当访问http://www.jbyuan.com跳转到http://www.jbyuan.com/nvxingjiankang/
方法...