https://imanila.ph/wp-content/plugins/imanila-contact-form/includes/assets/js/common.js?ver=04%3A38%3A53

1function validation(form) {
2    var valid = true;
3
4    remove_error();
5
6    form.find('.required').each(function(e){
7        let $this = jQuery(this),
8            type  = $this.attr('type'),
9            label = typeof($this.attr('aria-label')) == "undefined" ? 'This' : $this.attr('aria-label');
10            email_feedback = '<span class="invalid-feedback">Please input a valid email address.</span>';
11
12        if( $this.val() == '') {
13            valid = false;
14            feedback = '<span class="invalid-feedback">' + label + ' is required.</span>';
15
16            if( type == "checkbox" ) {
17                $this.addClass('is-invalid').parent().parent().parent().append(feedback);
18            } else {
19                $this.addClass('is-invalid').after(feedback);
20            }
21        } else if( $this.val() !== '' && type == "email" ) { 
22            let isEmailValid = check_email($this.val());
23
24            if ( !isEmailValid ) {
25                valid = false;
26                $this.addClass('is-invalid').after(email_feedback);
27            } else {
28                jQuery(this).removeClass('is-invalid');
29            }
30        } else {
31            jQuery(this).removeClass('is-invalid');
32        }
33    });
34    
35    if( !valid ) {
36        form.prepend('<div class="form-message form-not-valid">Please fill out all required fields and try again.</div>');
37    }
38    return valid;
39}
40
41function check_email(email) {
42    var regex = /^([a-zA-Z0-9_.+-])+\@(([a-zA-Z0-9-])+\.)+([a-zA-Z0-9]{2,4})+$/;
43    return regex.test(email);
44}
45        
46function remove_error() {
47    jQuery('.invalid-feedback, .form-not-valid').remove(); 
48}
49
50// function ajax(action, method, data, form) {
51//     return jQuery.ajax({
52//         type: method.toUpperCase(),
53//         url: action,
54//         data: data,
55//         beforeSend: function(){
56//             form.find('.required').addClass('form-sending');
57//             form.append('<div class="preloader"></div>');
58//         },
59//     }).fail(function(response, textStatus, jqxHR) {
60//         alert('Server Error!');
61//         console.log(response, textStatus, jqxHR);
62//     });
63// }
64
65// function onSubmit(token) {
66//     document.getElementById("g-recaptcha-response").value = token;
67//     // console.log(token, 'success!');
68// }