JSFiddle - React, Tailwind, and code Playground
HTML
<input type="text" id="t">
<input type="search" id="s">JavaScript
var fh = (e) => console.log('focus '+e.target.id);
var bh = (e) => console.log('blur '+e.target.id);
[t, s].forEach(el=> {
el.addEventListener('focus', fh);
el.addEventListener('blur', bh);
})