linx4200

def sort_by_multiple_keys(arr)
  
  # <=> operator to compare each element of the collection. 
  # This operator takes two arguments
  # returns
  # -1 if the first argument is less than the second argument
  #  1 if the second argument is less than the first argument
  #  0 if they're equivalent.
  
  # 1 <=> 2 # => -1  

linx4200

$($('.zm-item-rich-text')).off().on('copy', function(){console.log('我hijack了你的copy!')});

linx4200

#!/bin/sh

git filter-branch --env-filter '
OLD_EMAIL="your-old-email@example.com"
CORRECT_NAME="Your Correct Name"
CORRECT_EMAIL="your-correct-email@example.com"
if [ "$GIT_COMMITTER_EMAIL" = "$OLD_EMAIL" ]
then
    export GIT_COMMITTER_NAME="$CORRECT_NAME"
    export GIT_COMMITTER_EMAIL="$CORRECT_EMAIL"

linx4200

function SuperClass(params) {
  this.superValue = true;    
}

SuperClass.prototype.getSuperValue = function() {
  return this.superValue;
}

function SubClass () {
  this.subValue = false;

linx4200

function SuperClass(id) {
  this.id = id;   
  this.books = ['a' ,'b', 'c'];
}

SuperClass.prototype.showBooks = function () {
  console.log(this.books);
}

function SubClass (id) {

linx4200

function inheritObject(o) {
  // 声明一个过渡函数对象
  function F () {};
  // 过渡对象的原型继承父对象
  F.prototype = o;
  // 返回过渡对象的一个实例
  return new F();
}

linx4200

var BasketBall = function () { /* ... */};
var FootBall = function () { /* ... */};
var Tennis = function () { /* ... */};

// 运动工厂
var sportsFactory = function (name) {
  switch(name) {
    case 'NBA':
      return new BasketBall();
    case 'WorldCup':

linx4200

// 安全模式创建的工厂类
var Factory = function(type, content) {
  if (this instanceof Factory) {
    return new this[type](content);
  } else {
    return new Factory(type, content);
  }
}

// 工厂原型中设置创建所有类型数据对象的基类

linx4200

var A = {
  Util: {
    util_method1: function() {},
    util_method2: function() {},
    // ...
  },
  Tool: {
    tool_method1: function() {},
    tool_method2: function() {},
    // ...

linx4200

var LazySingleton = (function() {
  // 单例实例引用
  var instance = null;
  // 单例
  function Singleton() {
    return {
      publicMethod: function() {},
      publicProperty: '1'
    }
  }