前端学习笔记202309学习笔记第九十天-闭包13-CFANZ编程社区

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <!-- <input id="textInput"> -->
    <ul>
        <li>1</li>
        <li>2</li>
        <li>3</li>
    </ul>
    <script type="module" src="./indexdemo5.js">
    </script>
</body>
</html>

var oListItems=document.querySelector("ul").querySelectorAll("li")

for(var i=0;i<oListItems.length;i++){
    (function(i){
        oListItems[i].addEventListener("click",function(){
            console.log(i)
            console.log(oListItems[i].innerText)
        },false)
    }(i))
}

运行结果

前端学习笔记202309学习笔记第九十天-闭包13_html