伪强迫症患者的新MAC配置小记 - 工具篇

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但是，并不是每一个项目都需要Bootstrap, 而且其本身也存在不少的limitation，其实在2009年，W3C 提出了一种新的方案—-Flex 布局，可以简便、完整、响应式地实现各种页面布局。目前，它已经得到了所有浏览器的支持。曾经大致了解过这么一种新的方案，但是并不曾深入，今天正好有机会再次温习和总结一下这种用法。

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JavaScript编译器如何工作[转]

2017-04-26

当我们谈论JavaScript引擎的时候，通常是指它的编译器，一个把人类可读的源代码（本文中指JavaScript代码）翻译成机器可读的指令的程序。如果你还没考虑过你的代码在运行时会发生什么，那么这听起来可能相当神奇，但编译本质上只是一个翻译练习，让代码运行的快才是神奇的。

简单编译器是怎么工作的

JavaScript被认为是高级语言，这意味着它是人类可读的并且具有高度的灵活性。编译器的工作是把高级语言转换成计算机本地指令。

一个简单的编译程序有四个处理过程：词法分析器、解析器、翻译器、解释器。

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Curl常用命令

2017-04-19

Download a Single File

The following command will get the content of the URL and display it in the STDOUT (i.e on your terminal).

1	$ curl http://www.centos.org

To store the output in a file, you an redirect it as shown below. This will also display some additional download statistics.

$ curl http://www.centos.org > centos-org.html
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 27329    0 27329    0     0   104k      0 --:--:-- --:--:-- --:--:--  167k

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How to Work With GitHub and Multiple Accounts

2017-03-16

Step 1 - Create a New SSH Key

We need to generate a unique SSH key for our second GitHub account.

1	ssh-keygen -t rsa -C "your-email-address"

Be careful that you don’t over-write your existing key for your personal account. Instead, when prompted, save the file as id_rsa_COMPANY. In my case, I’ve saved the file to ~/.ssh/id_rsa_nettuts.

Step 2 - Attach the New Key

Next, login to your second GitHub account, browse to “Account Overview,” and attach the new key, within the “SSH Public Keys” section. To retrieve the value of the key that you just created, return to the Terminal, and type: vim ~/.ssh/id_rsa_COMPANY.pub. Copy the entire string that is displayed, and paste this into the GitHub textarea. Feel free to give it any title you wish.

Next, because we saved our key with a unique name, we need to tell SSH about it. Within the Terminal, type: ssh-add ~/.ssh/id_rsa_COMPANY. If successful, you’ll see a response of “Identity Added.”

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