var $form = $('form#contact_form'),
url = 'https://script.google.com/macros/s/AKfycbz7eb9owcK1Z0gNp1jma5hXQI7ZBP1XfMvwwIU6N79kr4Jl_kvS1xaCzUmxkm9CfkKK/exec'
$('#contact_form').on('submit', function(e) { // updated this so it only submit data when form is submitted successfully. Previously we were triggering this even when user click on submit button.
e.preventDefault(); // delete this is you want to send data to admin email address.
var jqxhr = $.ajax({
url: url,
method: "GET",
dataType: "json",
data: $form.serializeObject()
}).success(
// do something
);
})