<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>密碼判斷</title>
</head>
<body>
<input type="password" name="password">
<input type="password" name="confirm_password">
<br>
<span name="msg"></span>
<script>
function query(name){
return document.querySelector(`[name='${name}']`)
}
console.log(query("password"))
let inputs = document.querySelectorAll("[name='password'],[name='confirm_password']");
console.log(inputs);
[...inputs].map(item=>{
item.addEventListener("keyup",()=>{
let msg = "";
if(query("password").value !== query("confirm_password").value || query("password").value.length<5){
msg = "兩次密碼不一致或者密碼長度小於五位"
}
query("msg").innerHTML = msg
})
})
</script>
</body>
</html>
