Yulong Ruan ruanyl

## new_buffer_vim.txt
There are many ways to open a new buffer with no name, the simplest of which is :new.

:new will create a split window with an unnamed buffer.

:enew will open one in the current window.

:vnew will open one in a vertically split window.

:tabnew will open one in a new tab.

## requestAnimFrame.html
<!DOCTYPE HTML>
<html>
  <head>
    <style>
      body {
        margin: 0px;
        padding: 0px;
      }
    </style>
  </head>

## sqrt.js
    //开根号
    var sqrt = Math.pow(value, 1/2);

## viewportSize.js
var viewportwidth;
var viewportheight;

// the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight

if (typeof window.innerWidth != 'undefined') {
  viewportwidth = window.innerWidth,
  viewportheight = window.innerHeight
}

## ForDight.js
function ForDight(Dight,How){
    Dight = Math.round(Dight*Math.pow(10,How))/Math.pow(10,How);
    return Dight;
}

## create a simple nodejs http server
1.npm install connect --save

2.touch server.js
var connect = require('connect');
connect().use(connect.static(__dirname)).listen(8080);

3.node server.js

4.visit localhost:8080

## github_project_pages
git checkout --orphan gh-pages
add files of your project pages
git commit -a -m "First pages commit"
git push origin gh-pages
username.github.io/projectname

## Install_tmux
# First install tmux
brew install tmux

# For mouse support (for switching panes and windows)
# Only needed if you are using Terminal.app (iTerm has mouse support)
Install https://github.com/norio-nomura/EasySIMBL/
Then install https://bitheap.org/mouseterm/

# More on mouse support http://floriancrouzat.net/2010/07/run-tmux-with-mouse-support-in-mac-os-x-terminal-app/

## copy_json_object
JSON.parse(JSON.stringify(obj_json));

## if_cmd_exist
#!/bin/bash
# POSIX command lookup example
CMDS="tar /usr/bin/mysqldump /path/to/other/command"

for i in $CMDS
do
  # command -v will return >0 when the $i is not found
	command -v $i >/dev/null && continue || { echo "$i command not found."; exit 1; }
done
	There are many ways to open a new buffer with no name, the simplest of which is :new.

	:new will create a split window with an unnamed buffer.

	:enew will open one in the current window.

	:vnew will open one in a vertically split window.

	:tabnew will open one in a new tab.
	<!DOCTYPE HTML>
	<html>
	<head>
	<style>
	body {
	margin: 0px;
	padding: 0px;
	}
	</style>
	</head>
	var viewportwidth;
	var viewportheight;

	// the more standards compliant browsers (mozilla/netscape/opera/IE7) use window.innerWidth and window.innerHeight

	if (typeof window.innerWidth != 'undefined') {
	viewportwidth = window.innerWidth,
	viewportheight = window.innerHeight
	}
	function ForDight(Dight,How){
	Dight = Math.round(Dight*Math.pow(10,How))/Math.pow(10,How);
	return Dight;
	}
	1.npm install connect --save

	2.touch server.js
	var connect = require('connect');
	connect().use(connect.static(__dirname)).listen(8080);

	3.node server.js

	4.visit localhost:8080
	git checkout --orphan gh-pages
	add files of your project pages
	git commit -a -m "First pages commit"
	git push origin gh-pages
	username.github.io/projectname
	# First install tmux
	brew install tmux

	# For mouse support (for switching panes and windows)
	# Only needed if you are using Terminal.app (iTerm has mouse support)
	Install https://github.com/norio-nomura/EasySIMBL/
	Then install https://bitheap.org/mouseterm/

	# More on mouse support http://floriancrouzat.net/2010/07/run-tmux-with-mouse-support-in-mac-os-x-terminal-app/
	#!/bin/bash
	# POSIX command lookup example
	CMDS="tar /usr/bin/mysqldump /path/to/other/command"

	for i in $CMDS
	do
	# command -v will return >0 when the $i is not found
	command -v $i >/dev/null && continue \|\| { echo "$i command not found."; exit 1; }
	done