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【HTML+CSS+JavaScript】實現待辦事項(純DOM實現)

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需求:實現待辦事項

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>todoList</title>
    <style>    
        #todoList {
            list-style: none;
            margin:10px 0px;
            padding:0;
            width:600px;
        }
        #todoList li {
            margin
-bottom:5px; padding: 10px; border: 1px solid #ccc; background:#f5f5f5; position: relative; } input { padding:10px; font-size:16px; border:1px solid #ccc; } button { padding:10px 20px; border:1px solid #ccc; background: #f5f5f5; outline: none; cursor: pointer; } #todoList span { position: absolute; right: 10px; cursor: pointer; }
</style> </head> <body> <input type="text" id="content"> <button id="btn">添加</button> <ul id="todoList"> <li>取釣魚 <span>&times;</span></li> <li>取洗澡 <span>&times;</span></li> <li>取吃飯 <span>&times;</span></li> <li>去睡覺 <span>&times;</span></li> </ul> <script> var
input = document.querySelector(‘#content‘); var btn = document.querySelector(‘#btn‘); var todoList= document.querySelector(‘#todoList‘); var spans = document.querySelectorAll(‘#todoList span‘); btn.onclick = function(){ //獲取 input的內置 var text = input.value; //創建li元素 並給li元素添加包裹 內容 var li = document.createElement(‘li‘); li.innerText = text; var span = document.createElement(‘span‘); span.innerHTML = ‘&times;‘; li.appendChild(span); //把li元素添加到ul中 todoList.appendChild(li); } /*spans.forEach(function(span){ span.onclick = function(){ todoList.removeChild(this.parentNode) } })*/ //委派方式綁定 todoList.onclick = function(event) { if (event.target.nodeName === ‘SPAN‘) { this.removeChild(event.target.parentNode); } } </script> </body> </html>

【HTML+CSS+JavaScript】實現待辦事項(純DOM實現)