JSFiddle - React, Tailwind, and code Playground
by voigtan
HTML
<div>
asdasdasdas
<div class="mel-ui-xml-element-leaf">
bundlereadytimestamp
</div>
</div>
JavaScript
var x = [...document.querySelectorAll(".mel-ui-xml-element-leaf")].filter(e => e.innerText.includes("bundlereadytimestamp"))
if(x.length) {
console.log(x[0].parentNode.innerText)
}