Learn Nodejs from me (1) --- Introduction to Node.js and installation of development environment_javascript skills

学习资料

　　1.深入浅出Node.js

　　2.Node.js开发指南

简介（只捡了我觉得重要的）

    Node.js是让Javascript脱离浏览器运行在服务器的一个平台，不是语言；

    Node.js采用的Javascript引擎是来自Google Chrome的V8；运行在浏览器外不用考虑头疼的Javascript兼容性问题

    采用单线程、异步IO与事件驱动的设计来实现高并发（异步事件也在一定程度上增加了开发和调试的难度）；

    Node.js内建一个HTTP服务器，所以对于网站开发来说是一个好消息；

 

Home page: http://nodejs.org/

English API: http://nodejs.org/api/ (latest)
Chinese API:
http://nodeapi.ucdok.com/#/api/

Install Node.Js

Operating system environment: Win 7 64-bit

Installation is relatively simple in a Windows environment

　

http://nodejs.org/download/

Download the corresponding operating system installation file from the link (just install the latest version)

Follow the prompts and follow the next step until the installation is successful. You can see it in the default installation path (C:Program Filesnodejs). The default path can be modified during installation.

After the installation is successful, enter: node -v in the "Command Prompt" to view the installation version. The output version means the installation is successful

Introduction to NPM

The Windows Node.js installation package includes Node Pageaged Modules https://npmjs.org/ (npm). This node.js itself has basic modules. With this npm, you can install rich node.js library to complete actual development needs. ​

Introduction to commonly used commands:

View help

 npm help or npm h

Install the module

 npm intstall

Install the module in the global environment (-g: enable global mode)

npm install -g

More:

https://npmjs.org/doc/install.html

Uninstall module

 npm uninstall

Display the modules installed in the current directory

　npm list

After successful installation, npm and node.js paths will be added to the PATH user environment variable and system environment respectively

Development Tools

I downloaded WebStorm 7.0 and seem to use it a lot

WebStorm download address:

http://www.jetbrains.com/webstorm/

If you are doing .NET development, you can choose WebMatrix3. You can download and install it directly. It is very convenient to operate and does not require too much explanation. After using it for a while, you can directly build a Nodejs project. If you only develop in a Windows environment, it is recommended to use it

WebMatrix download address:

http://www.microsoft.com/web/webmatrix/

I finally chose Sublime, which can maintain a unified development tool under various platforms. There are many configuration methods online

Sublime download address:

http://www.sublimetext.com/ (The software does not require registration. A window that requires registration will pop up from time to time during use, just cancel)

Sublime Node.js development environment configuration

Download and install the Node.js installation package before starting configuration

　1. Install Sublime Text 2 first

2. Run Sublime and find Tools ---> Build System ---> new Build System

on the menu

3. Copy

into the file

Copy code The code is as follows:

{
"cmd": ["node" , "$file"],
"file_regex": "^[ ]*File "(...*?)", line ([0-9]*)",
"selector": "source .javascript"
}

4. Save the file as NodeJs.sublime-build

5. Find Tools ---> Build System ---> select NodeJs

on the menu

　6. Install Package Control; run Sublime, press the shortcut key Ctrl `; enter the following in the console and press Enter;

Copy code The code is as follows:

import urllib2,os,hashlib; h = '7183a2d3e96f11eeadd761d777e62404' 'e330c659d4bb41d3bdf022e94cab3cd0'; pf = 'Package Control.sublime-package'; ipp = sublime.installed_packages_path(); os.makedirs( ipp ) if not os.path.exists(ipp) else None; urllib2.install_opener( urllib2.build_opener( urllib2.ProxyHandler()) ); by = urllib2.urlopen( 'http://sublime.wbond.net/' pf.replace(' ', ' ')).read(); dh = hashlib.sha256(by) .hexdigest(); open( os.path.join( ipp, pf), 'wb' ).write(by) if dh == h else None; print('Error validating download (got %s instead of %s) , please try manual install' % (dh, h) if dh != h else 'Please restart Sublime Text to finish installation')

Please refer to: http://www.dbpoo.com/sublime-text2-theme-sod/

7. After the installation is complete, restart Sublime, press the shortcut key Ctrl Shift P; enter install, select Install Package and press Enter

8. Enter nodejs and select Nodejs installation (JavaScript & NodeJs Snippets can be installed)

9. Create a new test.js file, enter console.log('Hello Node.js'); press the shortcut key Ctrl B to run, and the output is successful! As shown below

Configuring the Sublime Node.js development environment here is successful!

If you want a better-looking theme color scheme, please refer to: http://www.infoq.com/cn/minibooks/nodejs

　
Extension: Install multi-version manager

Install the multi-version manager nvmw (NVM used in the Node Development Guide does not seem to work on Windows. I found this in www.npmjs.org. Although it is not used for learning, I will install it first)

Installation command

npm install -g nvmw

Because I haven’t used it, I won’t introduce it in detail. Check it out in detail

　https://npmjs.org/package/nvmw