This time I will bring you the message boxes commonly used in JS, and the notes of commonly used message boxes in JS. The following is a practical case, let’s take a look.
First let’s take a look at the running effect
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script type="text/javascript">
function warn_info(){
alert("提示消息框");
}
function sure_info(){
if (confirm("确认删除吗？")){
alert("删除成功");
}
else{
alert("取消删除");
}
}
function input_info(){
var txt=prompt("请输入您的年龄");
if(txt==""){
alert("输入为空，重新输入");
}
else{
alert("您的年龄为"+txt)
}
}
</script>
</head>
<body>
<input type="button" value="提示消息" onclick="warn_info()">
<input type="button" value="确认消息" onclick="sure_info()">
<input type="button" value="输入消息" onclick="input_info()">
</body>
</html>How to dynamically create tags and set attributes with js
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