设计模式知识连载（1）---函数的书写方式

来源：互联网发布：短信发送平台源码编辑：程序博客网时间：2024/06/06 09:54
<body><script type="text/javascript">/** *  形式一： */// function checkName() {//  console.log('checkName running_1') ;// } ;// function checkEmail() {//  console.log('checkEmail running_1') ;// } ;// function checkPassword() {//  console.log('checkPassword running_1') ;// } ;// checkName() ;// checkEmail() ;// checkPassword() ;/** *  形式二： */// var checkName = function() {//  console.log('checkName running_2') ;// } ;// var checkEmail = function() {//  console.log('checkEmail running_2') ;// } ;// var checkPassword = function() {//  console.log('checkPassword running_2') ;// } ;// checkName() ;// checkEmail() ;// checkPassword() ;/** *  形式三： */// var CheckObject = {//  checkName : function() {//      console.log('checkName running_3') ;//  },//  checkEmail : function() {//      console.log('checkEmail running_3') ;//  }, //  checkPassword : function() {//      console.log('checkPassword running_3') ;//  }// } ;// CheckObject.checkName() ;// CheckObject.checkEmail() ;// CheckObject.checkPassword() ;/** *  形式四： */// var CheckObject = function() {};// CheckObject.checkName = function() {//  console.log('checkName running_4') ;// } ;// CheckObject.checkEmail = function() {//  console.log('checkEmail running_4') ;// } ;// CheckObject.checkPassword = function() {//  console.log('checkPassword running_4') ;// } ;// CheckObject.checkName() ;// CheckObject.checkEmail() ;// CheckObject.checkPassword() ;/** *  形式五： */// var CheckObject = function() {//  return {//      checkName : function() {//          console.log('checkName running_5') ;//      },//      checkEmail : function() {//          console.log('checkEmail running_5') ;//      },//      checkPassword : function() {//          console.log('checkPassword running_5') ;//      }//  }// }// var co = CheckObject() ;// co.checkName() ;// co.checkEmail() ;// co.checkPassword() ;/** *  形式六： */// var CheckObject = function() {//  this.checkName = function() {//      console.log('checkName running_6') ;//  } ;//  this.checkEmail = function() {//      console.log('checkEmail running_6') ;//  } ;//  this.checkPassword = function() {//      console.log('checkPassword running_6') ;//  }// } ;// var co = new CheckObject() ;// co.checkName() ;// co.checkEmail() ;// co.checkPassword() ;/** *  形式七-1： */// var CheckObject = function() {} ;// CheckObject.prototype.checkName = function() {//  console.log('checkName running_7') ;// } ;// CheckObject.prototype.checkEmail = function() {//  console.log('checkEmail running_7') ;// } ;// CheckObject.prototype.checkPassword = function() {//  console.log('checkPassword running_7') ;// }// var co = new CheckObject() ;// co.checkName() ;// co.checkEmail() ;// co.checkPassword() ;/** *  形式七-2： */// var CheckObject = function() {} ;// CheckObject.prototype = {//  checkName : function() {//      console.log('checkName running_7-2') ;//  },//  checkEmail : function() {//      console.log('checkEmail running_7-2') ;//  }, //  checkPassword : function() {//      console.log('checkPassword running_7-2') ;//  }// } ;// var co = new CheckObject() ;// co.checkName() ;// co.checkEmail() ;// co.checkPassword() ;/** *  形式八-1： */// var CheckObject = {//  checkName : function() {//      console.log('checkName running_8-1') ;//      return this ;//  },//  checkEmail : function() {//      console.log('checkEmail running_8-1') ;//      return this ;//  },//  checkPassword : function() {//      console.log('checkPassword running_8-1') ;//      return this ;//  }// } ;// CheckObject.checkName().checkEmail().checkPassword() ;/** *  形式八-2： */// var CheckObject = function() {} ;// CheckObject.prototype = {//  checkName : function() {//      console.log('checkName running_8-2') ;//      return this ;//  },//  checkEmail : function() {//      console.log('checkEmail running_8-2') ;//      return this ;//  },//  checkPassword : function() {//      console.log('checkPassword running_8-2') ;//      return this ;//  }// } ;// var co = new CheckObject() ;// co.checkName().checkEmail().checkPassword() ;/** *  形式九-1(prototype.js)： */// Function.prototype.checkName = function() {//  console.log('checkName running_9-1[prototype.js]') ;// } ;// // 函数形式// var f1 = function() {}; // f1.checkName() ;// // 类形式// var f2 = new Function() ;// f2.checkName() ;/** *  形式九-2(prototype.js)： */// Function.prototype.addMethods = function(name, fn) {//  this[name] = fn ;// } ;// // 函数形式// var methods1 = function() {} ;// // 类形式// var methods2 = new Function() ;// methods1.addMethods('checkName', function() {//  console.log('checkName running_9-2[prototype.js]') ;// }) ;// methods2.addMethods('checkEmail', function() {//  console.log('checkEmail running_9-2[prototype.js]') ;// }) ;// methods1.checkName() ;// methods2.checkEmail() ;/** *  形式十-1(prototype.js)： */// Function.prototype.addMethods = function(name, fn) {//  this[name] = fn ;//  return this ;// } ;// var methods = new Function() ;// methods.addMethods('checkName', function() {//  console.log('checkName running_10-1[prototype.js]') ;// }).addMethods('checkEmail', function(){//  console.log('checkEmail running_10-1[prototype.js]') ;// }).addMethods('checkPassword', function() {//  console.log('checkPassword running_10-1[prototype.js]') ;// }) ;// methods.checkName() ;// methods.checkEmail() ;// methods.checkPassword() ;/** *  形式十-2(prototype.js)： */// Function.prototype.addMethods = function(name, fn) {//  this[name] = fn ;//  return this ;// } ;// var methods = new Function() ;// methods.addMethods('checkName', function() {//  console.log('checkName running_10-2[prototype.js]') ;//  return this ;// }).addMethods('checkEmail', function() {//  console.log('checkEmail running_10-2[prototype.js]') ;//  return this ;// }).addMethods('checkPassword', function() {//  console.log('checkPassword running_10-2[prototype.js]') ;//  return this ;// }) ;// methods.checkName().checkEmail().checkPassword() ;/** *  形式十一-1(prototype.js)： */Function.prototype.addMethods = function(name, fn){    this.prototype[name] = fn ;    return this ;} ;var Methods = function() {} ;Methods.addMethods('checkName', function() {     console.log('checkName running_11-1[prototype.js]') ;    return this ;}).addMethods('checkEmail', function() {    console.log('checkEmail running_11-1[prototype.js]') ;    return this ;}).addMethods('checkPassword', function() {    console.log('checkPassword running_11-1[prototype.js]') ;    return this ;}) ;var m = new Methods() ;m.checkName().checkEmail().checkPassword() ;</script></body>
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