scope and this in js with the preformance-1

HTML

<div id="result">代码输出结果：<br/></div>

JavaScript

var resultCon;
var name='window下的name';
function MyObj() {
    var name='MyObj下的name<br/>';
    this.name=name;
    
    this.doFunction = function() {
        //resultCon.innerHTML += this.name;
    };
}
//MyObj.prototype.name = 'prototype下的name<br/>';

window.onload = function() {
    resultCon = document.getElementById('result');
    
    var obj = new MyObj();
    doucument.write("abc");
    obj.doFunction();
    
};