JSFiddle - React, Tailwind, and code Playground

by Brad Christie

HTML

<div id="destaques">
        <div class="banner"><img src="images/001.jpg"/></div>
        <div class="banner"><img src="images/002.jpg"/></div>
        <div class="banner"><img src="images/003.jpg"/></div>
    </div>

JavaScript

function bannerRotator(element) {

        // Conta quantos banners existem:

        i = 0;

        $(element).find(".banner").each(function() {
            i++;
            $(this).addClass("test");
        });

        alert(i);

        //

    }
bannerRotator('#destaques');