$.ajax({
            type: "GET",
            url: "Services/EFService.svc/Members",
            data: "{}",
            contentType: "application/json; charset=utf-8",
            dataType: "json",
            success: function (data) {
                // Play with returned data in JSON format
            },
            error: function (msg) {
                alert(msg);
            }
        });

Jquery Ajax