JSFiddle - React, Tailwind, and code Playground

JavaScript

var xml = "<route>\
    <name>Lakeway</name>\
    <abrv>LAKE</abrv>\
    <eta>\
        <time>00:30</time>\
        <dest>MAIN</dest>\
    </eta>\
</route>";

xml = $.parseXML(xml);
var childrenOfEta = $(xml).find("abrv:contains(LAKE) + eta > *");

console.log(childrenOfEta);