JSFiddle - React, Tailwind, and code Playground

HTML

<div id="div-1">1st div</div> <div id="div-2">2nd div</div> <div id="div-3">3rd div</div> <div id="div-4">4th div</div> <div id="div-5">5st div</div>

<div id="ThisDoesNotFitNamingConvention">gdfgdsfgdsfgdf</div>

JavaScript

$(document).ready(function () {
    alert($('div[id^=div-]:last').attr('id'));
});