使用JavaScript将ID设置为createElement（）

Question

I am a beginner for js. I want set id into these created tags.but it didn't work.

var d1=document.createElement("div");
d1.setAttribute("class","container");         
var b3= document.createElement("button");
b3.setAttribute("class","btn btn-default");
b3.innerHTML="View More";
b3.setIdAttribute("id","b3");
d1.appendChild(b3);

Answer 1

您可以只设置DOM属性id ：

b3.id = "b3";

Answer 2

Thanks for every one who responded me.

var d1=document.createElement("div");
d1.setAttribute("class","container");         
var b3= document.createElement("button");
b3.setAttribute("class","btn btn-default");
b3.innerHTML="View More";
b3.setAttribute("id","b3");//b3 means the name of the id
d1.appendChild(b3);