for of 循环 querySelectorAll [英] for of loop querySelectorAll

问题描述

Mozilla 声明for of 循环将正确地遍历 NodeList 对象".(来源:https://developer.mozilla.org/en-US/docs/Web/API/NodeList) 但是，这在 Chrome 43 中不起作用.这是不正确的文档还是浏览器错误?

Mozilla states that "for of loops will loop over NodeList objects correctly". (source: https://developer.mozilla.org/en-US/docs/Web/API/NodeList) However, this doesn't work in Chrome 43. Is this incorrect documentation or a browser bug?

在带有复选框的页面上使用的复制示例代码:

The copied example code used on a page with checkboxes:

var list = document.querySelectorAll( 'input[type=checkbox]' );
for (var item of list) {
  item.checked = true;
}

推荐答案

Chrome 51 中提供.

Jake Archibald 发布了一个简单的修复:

NodeList.prototype[Symbol.iterator] = Array.prototype[Symbol.iterator]

和 for of 循环.

And for of loops.

这篇关于for of 循环 querySelectorAll的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！