Zhiye Li zhiyelee

## abbr.md

      
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                Some Common Used Abbreviations
              
          
    common used phrases


AFAIK == as far as I know
IMO == in my opinion
IMHO ==	in my humble opinion
LGTM == look good to me
AKA == also know as
ASAP == as sone as possible
BTW == by the way
FAQ == frequently asked questions


## crc_and_md5.md

      
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              August 29, 2015 14:04
            
              
                When is CRC more appropriate to use than MD5/SHA1?
              
          
    When is it appropriate to use CRC for error detection versus more modern hashing functions such as MD5 or SHA1? Is the former easier to implement on embedded hardware?
http://stackoverflow.com/questions/996843/when-is-crc-more-appropriate-to-use-than-md5-sha1
by @defines http://stackoverflow.com/a/996873/775783

CRC works fine for detecting random errors in data that might occur, for example, from network interference, line noise, distortion, etc.
CRC is computationally much less complex than MD5 or SHA1. Using a hash function like MD5 is probably overkill for random error detection. However, using CRC for any kind of security check would be much less secure than a more complex hashing function such as MD5.

  
## README.md

      
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              August 29, 2015 14:00
            
              
                Introduction to YUI Test
              
          
    Introduction to the YUI Test

  
## 236-a.js
// http://codeforces.com/contest/236/problem/A
function judge(str) {
    var arr = str.split('');
    var obj = {};
    var len = 0;

    for (var i = 0; i < arr.length; i++) {
        if (!obj[arr[i]]) {
            obj[arr[i]] = 1;
            len ++;

## description.markdown

      
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                gView sample -- this description will be showed in the head of the page and used as the title. I just want to make this description long enough.
              
          
    View gists in a more grace page.
Usage

visit http://g.zhiye.li/:gistid to view the gist, eg
// for below gitst 
https://gist.github.com/zhiyelee/9403314


## jsbin.fetiq.html
<!DOCTYPE html>
<html>
<head>
<meta name="description" content="instanceof cross iframe" />
  <meta charset="utf-8">
  <title>instanceof cross iframe</title>
</head>
<body>
  <iframe id="fr" ></iframe>


## animal_rabbit.js
var animal = { eats: true }
var rabbit = { jumps: true }

rabbit.__proto__ = animal  // inherit

console.log(rabbit.eats) // true

var animal = { eats: true }
rabbit = Object.create(animal);

## README.md

      
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                zhiyelee
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              December 23, 2015 03:08
            
              
                yui oop demos
              
          
    yui oop demo gist


merge mix


OOP

extend
augment
aggregate


bind rbind


## .gitignore
node_modules

## dot_in_triangle.js
/**
 * @description check dot whether in a triangle
 * @author zhiyelee
 */

/**
 * for tri like below:
 *        A
 *     *     *
 *   B *  *  * C
	// http://codeforces.com/contest/236/problem/A
	function judge(str) {
	var arr = str.split('');
	var obj = {};
	var len = 0;

	for (var i = 0; i < arr.length; i++) {
	if (!obj[arr[i]]) {
	obj[arr[i]] = 1;
	len ++;
	<!DOCTYPE html>
	<html>
	<head>
	<meta name="description" content="instanceof cross iframe" />
	<meta charset="utf-8">
	<title>instanceof cross iframe</title>
	</head>
	<body>
	<iframe id="fr" ></iframe>
	var animal = { eats: true }
	var rabbit = { jumps: true }

	rabbit.__proto__ = animal // inherit

	console.log(rabbit.eats) // true

	var animal = { eats: true }
	rabbit = Object.create(animal);
	/**
	* @description check dot whether in a triangle
	* @author zhiyelee
	*/

	/**
	* for tri like below:
	* A
	* * *
	* B * * * C