JSFiddle - React, Tailwind, and code Playground
JavaScript
/**
* Given an arbitrary input string, return the first nonrepeated character in
* the string. For example:
*
* firstNonRepeatedCharacter('ABA'); // => 'B'
* firstNonRepeatedCharacter('AABCABD'); // => 'C'
*/
var firstNonRepeatedCharacter = function(string) {
};