JSFiddle - React, Tailwind, and code Playground
by Ilia Lesnykh
HTML
<input id="contact_1" class="field" value="111" />
<input id="contact_2" class="field" value="222222" />
JavaScript
var contact_factory = document.getElementsByClassName('field');
for (var i = 0; i < contact_factory.length; i++) {
alert(contact_factory[i].value);
}