JSFiddle - React, Tailwind, and code Playground
HTML
<script src="https://getfirebug.com/firebug-lite-debug.js"></script>
JavaScript
function countSymbols(str) {
return str.split("").reduce((acc, cur, i) => {
acc[i] = cur;
return acc;
}, {});
}
console.log(countSymbols('hello'))