Subscribe function submitRegister() { (function($) { let isEmailValid = false; let isCheckboxValid = false; let email = document.getElementById(“newsletter_email”).value; if (email !== “”) { isEmailValid = true; } let checkboxCustomer = document.getElementById(“newsletter_customer”).checked; let checkboxMember = document.getElementById(“newsletter_member”).checked; if (checkboxCustomer || checkboxMember) { isCheckboxValid = true; } if (!isEmailValid) { $(“#subsciberForm .form-error-text”).html(“Email is Not Valid”); return false; } else if (!isCheckboxValid) { $(“#subsciberForm .form-error-text”).html(“Select at least 1 Newsletter”); return false; } else { $.ajax({ url: ‘https://api.artup.systems/api/mailtrain/add-subscriber’, type: ‘post’, data:$(‘#subsciberForm’).serialize(), success:function(res){ $(‘#subsciberForm’).html(“

Successfully subscribed to the newsletter!

“); $(‘#subsciberFormFooter’).html(“

Successfully subscribed to the newsletter!

“); } }); } }(jQuery)); }