JSFiddle - React, Tailwind, and code Playground
HTML
<span>1</span>
JavaScript
var arr = ['first', 'second', 'third'];
var value = document.getElementsByTagName('span')[0].innerHTML;
console.log(typeof value);
console.log(arr[value]);
<span>1</span>
var arr = ['first', 'second', 'third'];
var value = document.getElementsByTagName('span')[0].innerHTML;
console.log(typeof value);
console.log(arr[value]);