onclick if condition is met redirect with setTimeout

Question

I'm trying to create a simple login example of where if the login details meet a certain username and password, then redirect to a different page after 3 seconds.

This is what i've attempted so far, any help is appreciated

   <input type="text" id="username" placeholder="Username" name="uname" maxlength="15" required>

   <input type="password" id="password" placeholder="Password" name="psw" maxlength="25" required>

<div id="loginButton">
    <button type="button" input id="detailsChecker" onclick="showalert('alert');" label=>Login </button>
</div>

 <div id="alert" style="display:none;">
    <span class="closebtn" onclick="this.parentElement.style.display='none';">&times;</span>
    <p id="alertmsg"> </p>
</div>

<div id="alertsuccess" style="display:none;">
    <span class="closebtn" onclick="this.parentElement.style.display='none';">&times;</span>
    <p id="alertmsg"> </p>




function showalert(id) {
    var divelement = document.getElementById(id);
    var username = document.getElementById("username").value;
    var password = document.getElementById("password").value;
if (username === "u1460714" && password ==="barney") {
        document.getElementById("alertmsg").innerHTML = "Successfully logged in, redirecting in 3 seconds";
        setTimeout, window.location = "attendance.html"; 3000;
        divelement.style.display = 'block';
        divelement.className = 'success'

    }
}

Answer 1

You have improperly called the setTimeout() function. It accepts an callback function as the argument, holding the whole code, which has to be delayed.

 function showalert(id) { var divelement = document.getElementById(id); var username = document.getElementById("username").value; var password = document.getElementById("password").value; if (username === "u1460714" && password === "barney") { document.getElementById("alertmsg").innerHTML = "Successfully logged in, redirecting in 3 seconds"; setTimeout(function() { window.location = "attendance.html"; }, 3000); divelement.style.display = 'block'; divelement.className = 'success' } } 

 <input type="text" id="username" placeholder="Username" name="uname" maxlength="15" required> <input type="password" id="password" placeholder="Password" name="psw" maxlength="25" required> <div id="loginButton"> <button type="button" input id="detailsChecker" onclick="showalert('alert');" label=>Login </button> </div> <div id="alert" style="display:none;"> <span class="closebtn" onclick="this.parentElement.style.display='none';">&times;</span> <p id="alertmsg"> </p> </div> <div id="alertsuccess" style="display:none;"> <span class="closebtn" onclick="this.parentElement.style.display='none';">&times;</span> <p id="alertmsg"> </p>