parent.children.forEach(child=>{ console.log(child) }) 运行后出现以下错误: VM384:53 Uncaught TypeError: parent.children.forEach is not a function 问题原因: parent.childrenisNodeList类型, 类似Array的object: 包含lengthproperty, which indicates the number of nodes Each node is a property value wi...
简介:JavaScript 然后遍历dom时报错 forEach is not a function 1. 获取html dom,然后遍历dom时,报错 list .forEach is not a function functionremoveImg(){varlist=document.getElementsByTagName("img"); list =Array.from(list); list.forEach((element, index) =>{element.remove(); }); } 2. 解决...
1. 获取html dom,然后遍历dom时,报错 list .forEach is not a function function removeImg(){ var list=document.getElementsByTagName("img"); list = Array.from(list); list.forEach((element, index) => {element.remove(); }); } 1. 2. 3. 4. 5. 6. 7. 2. 解决办法: 加上一行代码 l...
Uncaught (in promise) TypeError: list2.forEach is not a function 问题出现的环境背景及自己尝试过哪些方法 相关代码 function renderCnxh(list2 = []) { // const item1 = list[0]; const jp3Warper = document.querySelector(".Wonderful--WonderfulBottom--e1G-ks7"); let cnxhHtml = ""; lis...
keys.forEach(function(key){ html += val[key]; }); html += "</div>" }); $(".realquote").html(html); }); }); }); 但每次,我都会收到错误:TypeError: data.forEach is not a function”,我不知道为什么。 如果有人能将我推向正确的方向,将不胜感激!
When you are a developer, you may need to use loops every other day. Sometimes you will end up looping items that are not iterable. In this article, we will discuss scenarios where you will get the following error when you try to use forEach function.1index.html:20 Uncaught TypeError: ...
forEach() 是 JavaScript 数组上的一种方法，因此您不能将它与类似数组的值一起使用，例如 函数参数 或 iterables 。如果你想使用 forEach() 和 arguments 或可迭代对象，使用 Array.from() 首先转换为完全成熟的数组。function test() { // Throws "TypeError: arguments.forEach is not a function" ...
There are four areas in the this code where the following throws a forEach. It is not a function because parent.children is not an array. Instead, it is an HTMLCollection and as such doesn't have forEach method. obj[that.children].forEac...
https://javascript.plainenglish.io/interview-can-you-stop-foreach-in-javascript-724d9d76fd72 面试官:你能停止 JavaScript 中的 forEach 循环吗? 在回答这个问题时,我的回答导致面试官突然结束了面试。 我对结果感到沮丧,问面试官:“为什么?实际上可以停止 JavaScript 中的 forEach 循环吗?”...
Array.prototype.forEach =function(callback, thisArg) { var T, k; if (this ==null) { thrownew TypeError(" this is null or not defined"); } var O = Object(this); var len = O.length >>> 0;// Hack to convert O.length to a UInt32 ...