阿里面试题string的扩展

var greeting = 'My name is ${name}, age ${age}, I am a ${job.jobName}';var employee = {    name: "XiaoMing",    age: 11,    job: {        jobName: "designer",        jobLevel: "senior"    }
};
var result = greeting.render(employee);console.log(result); //？？？ 要求输出该格式： My name is XiaoMing, age 11, I am a designer

/****************************************/
var greeting = 'My name is ${name}, age ${age}, I am a ${job.jobName}';var employee = {    name: "XiaoMing",    age: 11,    job: {        jobName: "designer",        jobLevel: "senior"    }};String.prototype.render = function (obj) {    let _this = this;    Object.assign(window,obj);    _this = "\`" + _this + "\`";    _this = eval(_this);    return _this;}var result = greeting.render(employee);console.log(result); // My name is XiaoMing, age 11, I am a designer