Ruan YiFeng ruanyf

## gist:4670316
data:text/html, <html style="background-color:FFFFCC;"><title>Editor</title><textarea style="margin:0;padding:0;font-size: 1.5em; background-color:FFFFCC;width: 100%; height: 100%; border: none; outline: none" placeholder="Use Ctrl+S to save ..." autofocus />

## tracker
http://94.228.192.98/announce

http://anisaishuu.de:2710/announce

http://bigfoot1942.sektori.org:6969/announce

http://bt2.careland.com.cn:6969/announce

http://exodus.desync.com/announce

## 新的顶级域名（可注册）
.dance
.democrat
.rich
.farm
.guru
.codes
.sale
.video
.garden
.fashion

## gist:cae49b92b0bd43c4d57d
function a(x,y){
  y = function() { x = 2; };
  return function(){
  	var x = 3;
	y();
   	console.log(x);
  }.apply(this, arguments);
}

a();

## require.js
function require(p){
    var path = require.resolve(p)
      , mod = require.modules[path];
    if (!mod) throw new Error('failed to require "' + p + '"');
    if (!mod.exports) {
      mod.exports = {};
      mod.call(mod.exports, mod, mod.exports, require.relative(path));
    }
    return mod.exports;
  }

## key.md

      
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                ruanyf
                / key.md
            
            
              Created
              February 4, 2016 09:04
            
              
                3 Ways of Generating SSH Keys: OpenSSH, OpenSSL and GPG
              
          
    # OpenSSH
# 运行后，要求用户提供密钥文件名
# 然后在当前目录生成两个密钥文件：id_rsa（私钥）和id_rsa.pub（公钥）
$ ssh-keygen -t rsa -b 4096 -C "your.email@service.com"

# OpenSSL
# 生成私钥，然后生成公钥
$ openssl genrsa -out private_key.pem 4096
$ openssl rsa -pubout -in private_key.pem -out public_key.pem

  
## proxy.js
// 实现
const queuedObservers = new Set();

const observe = fn => queuedObservers.add(fn);
const observable = obj => new Proxy(obj, {set});

function set(target, key, value, receiver) {
  const result = Reflect.set(target, key, value, receiver);
  queuedObservers.forEach(observer => observer());
  return result;

## map-vs-flatmap.js
const map = (array, func) => (
  array.map(func)
);

const flatMap = (array, func) => (
  array.reduce((result, element) => (
    result.concat(func(element))
  ), [])
);

## default-parameter-scope.js
// 情况一
let str = 'outer';

function foo(x = () => str) {
  let str = 'inner';
  console.log(x()); // outer
}

foo();

## default-parameter-by-express.js
let x = 99;

function foo(p = x + 1) {
  console.log(p);
}

foo() // 100

x = 100;
foo() // 101
	http://94.228.192.98/announce

	http://anisaishuu.de:2710/announce

	http://bigfoot1942.sektori.org:6969/announce

	http://bt2.careland.com.cn:6969/announce

	http://exodus.desync.com/announce
	.dance
	.democrat
	.rich
	.farm
	.guru
	.codes
	.sale
	.video
	.garden
	.fashion
	function a(x,y){
	y = function() { x = 2; };
	return function(){
	var x = 3;
	y();
	console.log(x);
	}.apply(this, arguments);
	}

	a();
	function require(p){
	var path = require.resolve(p)
	, mod = require.modules[path];
	if (!mod) throw new Error('failed to require "' + p + '"');
	if (!mod.exports) {
	mod.exports = {};
	mod.call(mod.exports, mod, mod.exports, require.relative(path));
	}
	return mod.exports;
	}
	// 实现
	const queuedObservers = new Set();

	const observe = fn => queuedObservers.add(fn);
	const observable = obj => new Proxy(obj, {set});

	function set(target, key, value, receiver) {
	const result = Reflect.set(target, key, value, receiver);
	queuedObservers.forEach(observer => observer());
	return result;
	const map = (array, func) => (
	array.map(func)
	);

	const flatMap = (array, func) => (
	array.reduce((result, element) => (
	result.concat(func(element))
	), [])
	);
	// 情况一
	let str = 'outer';

	function foo(x = () => str) {
	let str = 'inner';
	console.log(x()); // outer
	}

	foo();
	let x = 99;

	function foo(p = x + 1) {
	console.log(p);
	}

	foo() // 100

	x = 100;
	foo() // 101