export function mostUsedChar(text) {
let charObj = {};
let maxCount = 0;
let maxChar = "";
for (let char of text) {
charObj[char] = ++charObj[char] || 1;
}
for (let char in charObj) {
if (charObj[char] > maxCount) {
maxCount = charObj[char];
maxChar = char;
return maxChar;