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How should I escape strings in JSON?
When creating JSON data manually, how should I escape string fields? Should I use something like Apache Commons Lang's StringEscapeUtilities.escapeHtml , StringEscapeUtilities.escapeXml , or should I use java.net.URLEncoder ?
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Why doesn't Haskell's Prelude.read return a Maybe?
Is there a good reason why the type of Prelude.read is
5 Answers
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How to format a number as percentage in R?
...%"
percent((1:10) / 100000)
# [1] "0.001%" "0.002%" "0.003%" "0.004%" "0.005%" "0.006%" "0.007%" "0.008%"
# [9] "0.009%" "0.010%"
percent(sqrt(seq(0, 1, by=0.1)))
# [1] "0%" "32%" "45%" "55%" "63%" "71%" "77%" "84%" "89%" "95%"
# [11] "100%"
percent(seq(0, 0.1, by=0.01) ** 2)
# [1] "0...
常用Git命令汇总 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...了一些常用的Git命令。
常用配置
system #系统级别
--global #用户全局
--local #单独一个项目
git config --global user.name "xxxx" #用户名
git config --global user.email "xxxx@xxx.com" #邮箱
git config --global core.editor vim #编辑器
git config --global ali...
腾讯Tencent开源框架介绍（持续更新） - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...架开发的分布式NoSQL存储系统，数据采用内存存储，支持连接后端DB实现数据持久化。DCache采用集群模式，具有高扩展、高可用的特点。
https://github.com/Tencent/MMKV MMKV 是基于 mmap 内存映射的 key-value 组件，底层序列化/反序列化...
Git: Correct way to change Active Branch in a bare repository?
I have a bare repository that's used as the central store for my project. All the developers do git clone <repo> to share with it. When they do the clone, they get a checkout of the master branch (unless they do git clone -n ) because repo.git/HEAD contains ref: refs/heads/master , mak...
How can I tell if my server is serving GZipped content?
I have a webapp on a NGinx server. I set gzip on in the conf file and now I'm trying to see if it works. YSlow says it's not, but 5 out of 6 websites that do the test say it is. How can I get a definite answer on this and why is there a difference in the results?
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What is the syntax rule for having trailing commas in tuple definitions?
In the case of a single element tuple, the trailing comma is required.
10 Answers
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Best way to generate random file names in Python
...y%m%d_%H%M%S")
filename = "_".join([basename, suffix]) # e.g. 'mylogfile_120508_171442'
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Setting PATH environment variable in OSX permanently
I have read several answers on how to set environmental variables on OSX as permanently.
6 Answers
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