const str = 'abcab'; const freq = (str) => str.split('').reduce((obj, char) => { obj[char] = (obj[char] || 0) + 1; return obj; }, {}) console.log(freq('zCu3zezCaX'));
const str = 'abcab'; const freq = (str) => str.split('').reduce((obj, char) => { obj[char] = (obj[char] || 0) + 1; return obj; }, {}) console.log(freq('zCu3zezCaX'));