smachs

/*
 * Load contacts and filter by categories.
 */
( function() {
	'use strict';

	// Variables.
	const filterForm     = document.getElementById( 'filter-contacts' );
	const contactWrapper = document.getElementById( 'contact-section' );
	const htmlOutput     = document.getElementById( 'js-contact-replace' );

smachs

// Implementation in ES6
function pagination(c, m) {
    var current = c,
        last = m,
        delta = 2,
        left = current - delta,
        right = current + delta + 1,
        range = [],
        rangeWithDots = [],
        l;

smachs

<select name="estados-brasil">
	<option value="AC">Acre</option>
	<option value="AL">Alagoas</option>
	<option value="AP">Amapá</option>
	<option value="AM">Amazonas</option>
	<option value="BA">Bahia</option>
	<option value="CE">Ceará</option>
	<option value="DF">Distrito Federal</option>
	<option value="ES">Espírito Santo</option>
	<option value="GO">Goiás</option>