JS模式之单例模式基本用法

本文实例讲述了JS模式之单例模式基本用法。分享给大家供大家参考。具体如下：

//singleton
var SingletonTester = (function(){
  function Singleton(options){
    options = options || {};
    this.name = "SingletonTester";
    this.pointX = options.pointX || 6;
    this.pointY = options.pointY || 10;
  };
  
  var instance;
  var _static = {
    name : "SingletonTester",
    getInstance : function(options){
      if(instance === undefined){
 instance = new Singleton(options)
      };
      return instance;
    }
  };
  return _static;
})();

希望本文所述对大家的javascript程序设计有所帮助。