JSFiddle - React, Tailwind, and code Playground

by alnitak

HTML

<input type='checkbox' class='Company' data-companyid='1'> 1<br>
<input type='checkbox' class='Company' data-companyid='2'> 2<br>
<input type='checkbox' class='Company' data-companyid='3'> 3<br>

JavaScript

var $Company = $('input.Company');

function getCompanyList() {
    var list = $Company.filter(':checked').map(function() {
        return $(this).data('companyid');
    }).get();
    alert(list);
};

$Company.change(getCompanyList);