原生JS实现循环Nodelist Dom列表的4种方式示例

function $(id) { return document.getElementById(id);}var _PAGE = { timeListDom: $('timeList')};var spanDoms = _PAGE.timeListDom.querySelectorAll('span'), domLen = spanDoms.length;// 第一种方式：原生for循环for (var i = 0; i < domLen; i++) { var v = spanDoms[i]; // do something you want deal with DOM}// 第二种方式：Array 的 forEach函数Array.prototype.forEach.call(spanDoms, function(v) { // do something you want deal with DOM});// 第三种方式：Array 的 forEach函数[].forEach.call(spanDoms, function(el) { // do something you want deal with DOM el.classList.remove('active');});// 第四种方式：继承Array 的 forEach函数NodeList.prototype.forEach = Array.prototype.forEach;spanDoms.forEach(function(v) { // do something you want deal with DOM});