See here. You need to escape (\) the $ in the javascript and add jquery.js. Also you need to show the code for test.pl because more errors could be there.

#!/usr/bin/perl
use strict;
use warnings;

print "Content-type: text/html\n\n";
print <<END_HTML;
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" />
<title>Untitled Document</title>
<script src="jquery-3.1.1.min.js"></script>
<script>
  \$(document).ready(function () {
    \$("#Submit").click(function(event) {
       Execute();
    });

    function Execute(){
      \$.ajax({
        type: 'POST',
        url: 'test1.pl',
        data: { 's': '' },
        success: function(res) {
          alert(res.msg);
        },
        error: function() {
          alert("failed");
        }
      });
    };

  });
</script>
</head>
<body>
<input type="button" id="Submit" name="Submit" value="Submit"/>
</body>
</html>
END_HTML

[download]
#!/usr/bin/perl
# test1.pl
use strict;
use JSON; 
use CGI;
my $q = new CGI;
my $json = encode_json(
  { msg => "Time now is ".localtime }
);
print $q->header( -type => 'application/json' ),$json;

[download]
poj

In reply to Re: submit data without reload by poj
in thread submit data without reload by bigup401

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