Internet Explorer 11 中的 SCRIPT438 错误 [英] SCRIPT438 Error in Internet Explorer 11

问题描述

我最近一直在研究 JavaScript，一切都很好，直到我在 IE11 中打开我的页面.根据 Mozilla 网站 .forEach 从 IE9 开始支持.

I've been working on JavaScript lately, and everything was fine until I opened my page in IE11. as per Mozilla website .forEach is supported from IE9.

这是我得到的错误.

SCRIPT438:对象不支持forEach"属性或方法

SCRIPT438: Object doesn't support property or method 'forEach'

这是代码.

var link1 = document.querySelectorAll("nav a");
    var textbox = document.getElementById("OutputWindow");
    link1.forEach(function (element) {
        textbox.innerHTML += "<br/>" + element + "
";
        element.onclick = function () {
            alert("Hello!");
            console.log("hello!");
            confirm("Hello!");
        };
    });

我尝试过 polyfill，但让我觉得有趣的是，Array 在 IE11 中有一个 forEach.

I tried polyfill, but to my amusement, Array has a forEach in IE11.

那我哪里出错了?

PS:这在 Chrome 中运行良好.

PS: This works fine in Chrome.

推荐答案

终于解开了谜团.

显然，IE9 及更高版本支持 Array.forEach 但不支持 NodeList，querySelector 返回.我尝试了 Array.from() 无济于事，因为它需要 ES6 或使用 ES6-shim.

Apparently, IE9 and above supports Array.forEach but not for NodeList, which querySelector returns. I tried Array.from() to no avail as it requires ES6 or use ES6-shim.

我所要做的就是从 nodeList 转换为 Array，我就是这样做的.

All I had to do was to convert from nodeList to Array, and I did by this.

Array.prototype.slice.call(document.querySelectorAll("nav a"), 0);

出现在问题 在 Javascript 中，将 NodeList 转换为数组的最佳方法是什么

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