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Git for beginners: The definitive practical guide
Ok, after seeing this post by PJ Hyett , I have decided to skip to the end and go with Git .
37 Answers
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Asynchronous vs Multithreading - Is there a difference?
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@KumarVaibhav - the most common example is when a single thread works on items from a queue (for instance, the Windows message queue). If the program is in the habit of sending items into it's own queue (a common pattern) then the bit of code tha...
Deleting folders in python recursively
...o. As asked, the question was how to delete EMPTY directories.The docs for os.walk give an example that almost exactly matches this question: import os for root, dirs, files in os.walk(top, topdown=False): for name in dirs: os.rmdir(os.path.join(root, name))
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微博为什么限制140字(附短信70字限制考) - 闲聊区 - 清泛IT社区，为创新赋能！
...了吗 (update:它已经复活了)”开始把140字沿用至今，成为一个不成文的规定，没什么特别的就不需要改，倒是网易在这一点上走了个歪路。当然不只我一个纠结过这个问题，这篇关于中文微博140字的博文分析原因可能是“一方面...
Java system properties and environment variables
... they are added to.
Also as Bohemian stated, env variables are set in the OS (however they 'can' be set through Java) and system properties are passed as command line options or set via setProperty().
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BLE（四）嗅探工具 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...上系统（SOC）解决方案，适合蓝牙低功耗应用。它包含了一个8051内核的RF收发器，可编程闪存，8KB RAM和其他功能强大的配套特征及外设。CC2540有两种版本：CC2540F128 / F256，分别为128和256 KB的闪存，结合TI的低功耗蓝牙协议栈，CC25...
Recursive search and replace in text files on Mac and Linux
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OS X uses a mix of BSD and GNU tools, so best always check the documentation (although I had it that less didn't even conform to the OS X manpage):
https://web.archive.org/web/20170808213955/https://developer.apple.com/lega...
SQL Server: Filter output of sp_who2
...PID INT,
Status VARCHAR(MAX),
LOGIN VARCHAR(MAX),
HostName VARCHAR(MAX),
BlkBy VARCHAR(MAX),
DBName VARCHAR(MAX),
Command VARCHAR(MAX),
CPUTime INT,
DiskIO INT,
LastBatch VARCHAR(MAX),
ProgramName VARCHAR(MAX),
S...
How the single threaded non blocking IO model works in Node.js
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Node.js is built upon libuv, a cross-platform library that abstracts apis/syscalls for asynchronous (non-blocking) input/output provided by the supported OSes (Unix, OS X and Windows at least).
Asynchronous IO
In this programming model open/read/write oper...
MediaNotification 媒体通知扩展：管理媒体播放器通知，支持播放控制 · Ap...
...完成。1. 创建项目备份副本2. 导出项目3. 在.aia文件（是一个ZIP存档）中，在 assets/external_comps 目录中删除 de.ullisroboterseite.ursai2medianotificationk 目录4. 将 de.ullisroboterseite.ursai2medianotification 目录从扩展（.aix文件，也是ZIP存档）复制...