Question

JS 怎么将一个标签的ID弄成数组

将<li>标签中ID值弄成一个数组，在线等

Answer 1

var lis = document.querySelectorAll('li');
var ary = [];
for(var i = 0,len = lis.length;i < len;i++){
ary.push(lis[i].id);
}
console.log(ary);