javascript 事件委托
仅作为个人笔记使用,不进行详细说明
参考:https://blog.csdn.net/lszyzs/article/details/106876057
https://zhidao.baidu.com/question/497365658094414364.html
删除
<ul> </ul> <script> // 由于是自动在ul标签中生成li标签的 let ul = document.querySelector("ul") ul.onclick = (event) => { if(event.target.nodeName == "LI") { ul.removeChild(event.target) } } </script>
获取自动生成标签的下标
<ul> </ul> <button>button</button> <script> let ul = document.querySelector("ul") let button = document.querySelector("button") button.onclick = function(event) { let li = document.createElement("li") li.innerHTML = "10" ul.appendChild(li) } ul.onclick = (event) => { let lis = document.querySelectorAll("li") if (event.target.nodeName == "LI") { lis.forEach((item, index) => { if(event.target == item) { console.log(index) } }) // ul.removeChild(event.target) } } </script>