js中实现遍历dom元素的方法

var doms=document.querySelectorAll('div')

var arr=[...doms]

arr.forEach((val)=>{

    console.log(val.innerHTML)

})

var list = document.getElementById('list');

var child = list.firstElementChild;

while(child){

    console.log( child );

    child = child.nextElementSibling;

}