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...
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. 解决办法: 加上一行代码 list = Array.from(list); Array.from()...
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...
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! 是一个没有.forEach 使用data.quotesArray.forEach(..代替data.forEach(.. http://js.do/code/100647 如果你想遍历数据,那么你可以使用Object...
list2.forEach(item2 =>这行代码报错为Uncaught (in promise) TypeError: list2.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...
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 ...
1. if ( !Array.prototype.forEach ) { 2. 3. function( callback, thisArg ) { 4. 5. var T, k; 6. 7. if ( this == null ) { 8. throw new TypeError( " this is null or not defined" ); 9. } 10. 11. // 1. Let O be the result of calling ToObject passing the |this...
錯誤Uncaught (in promise) TypeError: data.forEach is not a function。 按兩下發生錯誤之網頁和程式代碼行連結,以開啟來源工具。 也就是說,按兩下network-error.html:40主控台中的連結: [來源]工具隨即開啟。 有問題的程式代碼行會反白顯示,後面接著 (errorx) 按鈕。
forEachCustom = function (fn, context) { context = context || arguments[1]; if (typeof fn !== 'function') { throw new TypeError(fn + 'is not a function'); } let len = this.length; let k = 0; while (k < len) { if (this.hasOwnProperty(k)) { fn.call(context, this[k...