JavaScript 多条目表单验证

Question

我正在尝试使用 Javascript 在页面重定向之前验证用户输入。 用户可以输入学号、姓名或性别，根据他们的输入，他们将被重定向到 URL.

但是，我似乎没有在我的 javascript 中正确地获取多个条目，并且在单击提交按钮时没有任何反应。

我尝试了在这里找到的不同解决方案。

查看下面我的 JavaScript 代码；

var attempt = 3; // Variable to count number of attempts.
// Below function Executes on click of login button.
function validate(){
var username = document.getElementById("studentid").value;

if ( studentid == "12345" || studentid == "Daniel" || studentid == "Boy"){
alert ("Correct Input");
window.location = "https://www.google.com"; 
// Redirecting to other page.

return false;
}

else{
attempt --;// Decrementing by one.
alert("ATTENTION!\nInvalid student ID!\nNot associated with any student\nYou have left "+attempt+" attempt;");
// Disabling fields after 3 attempts.
if( attempt == 0){
document.getElementById("studentid").disabled = true;
document.getElementById("submit").disabled = true;
return false;
}
}
}

我尝试过使用以下解决方案；

if ( studentid == "#12345, #Daniel, #Boy"));{
alert ("correct input");
window.location = "https://www.google.com"; 
// Redirecting to other page.


if ( studentid == '12345', 'Daniel', 'Boy'){
alert ("correct input");
window.location = "https://www.amazon.com"; 
// Redirecting to other page.

Answer 1

经过多次尝试，我终于做对了！

var attempt = 3;
function check(form)
{
if(form.studentid.value == "12345" || form.studentid.value == "DANIEL" || form.studentid.value == "BOY")
  {
    window.location.replace('https://www.google.com')

return false;
}
 else
 {
   attempt --;// Decrementing by one.
alert("ATTENTION!\nInvalid student ID!\nNot associated with any student!\nYou have left "+attempt+" attempt;");
// Disabling fields after 3 attempts.
if( attempt == 0){
document.getElementById("studentid").disabled = true;
document.getElementById("submit").disabled = true;
return false;
}
}
}