用Node.js单独运行js文件时，其中定义的alert不可用
alert is not part of JavaScript, it's part of the window object provided by web browsers.
var name = "The Window";
function ttt() {
return(this.name);
}
alert(ttt.call(window);
//alert(window);
var object = {
name : "My Object",
getNameFunc : function(){
return function(){
return this.name;
};
}};
console.log(object.getNameFunc()()); // console The Windowvar name = "The Window";
var object = {
name : "My Object",
getNameFunc : function(){
var that = this;
return function(){
return that.name;
};
}};
console.log(object.getNameFunc()()); //console My Object
如果是在Node.js中运行的话，window会提示“undedined”。