javascript form on submit validation

  
    
  

<script>
    $("form").submit(function(event) {
        var recaptcha = $("#g-recaptcha-response").val();
        if (recaptcha === "") {
            event.preventDefault();
            alert("Please Verify Captcha");
        }
    });
    
    $('#get_my_free_product').click(function(event) {
        var recaptcha = $("#g-recaptcha-response").val();
        if (recaptcha === "") {
            event.preventDefault();
            alert("Please Verify Captcha");
        }
    });
</script>