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Hello, I have an if statement written in javascript in the header of an html document...

Hello,

I have an if statement written in javascript in the header of an html document (under <script>) and I need to put a link in the if statement to a document called form.php so that it only appears if the requirement is met. Can someone give me an example of how to format the link in javascript so that it will work?

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Answer #1
  • Inside the if condition, we can use window.location .
  • We can use any of the one from below :
  • window.location = 'form.php';
  • window.location.href = 'form.php';
  • window.location.assign('form.php');
  • An example is in below script

-----------------------------------pageRedirectionUsingJs.html-----------------------------------

<!DOCTYPE html>
<html>
<head>
   <title>Redirection to PHP file using JS</title>

   <!--Script used-->
   <script type="text/javascript">


       function goto(){

//read input from user
           var num=parseInt(document.getElementById('numin').value);
           if(num==1){

//redirect to form.php
               window.location.href='form.php';


           }
           else{


               alert("Sorry, Please enter 1 to redirect!!!");


           }
       }


   </script>
</head>
<body>


<center>
    <label>Please enter 1 and click the button to go to form.php >>></label><br>
<input type="number" name="numinput" id="numin" value=""><br>
    <button onclick="goto();">Click Me</button>
</center>


</body>
</html>

------------------------form.php------------------------------

<?php


echo "This is form.php ";


?>

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