Simple password protected link frontend validation HTML (multiple password)

This is file protected 👅<br /> Enter password to unlock: <input id="password" type="number" />
<a href="http://google.com/" onclick="javascript:return validatePass()">Get the URL</a>
<script>
function validatePass(){
    if(document.getElementById('password').value == '1234'){
        return true;
      } 
  else if(document.getElementById('password').value == '1111'){
        return true;
    }else{
        alert('wrong password!!');
        return false;
    }
}
</script>