JSFiddle - React, Tailwind, and code Playground
HTML
<div></div>
JavaScript
var arrays = [['tier1','tier2b','tier3'],['tier1','tier2a','tier3a']];
console.log(arrays,'sorted:');
console.log(arrays.sort());
<div></div>
var arrays = [['tier1','tier2b','tier3'],['tier1','tier2a','tier3a']];
console.log(arrays,'sorted:');
console.log(arrays.sort());