Function getHash

javascript/0049-group-anagrams.js:62–73

(word)

};

const getHash = (word) => {
    const frequency = new Array(26).fill(0);

    for (const char of word) {
        /* Time O(K) */
        const charCode = getCode(char); /* Time O(1) | Space (1) */

        frequency[charCode]++; /*           | Space O(1) */
    }

    return buildHash(frequency);
};

const getCode = (char) => char.charCodeAt(0) - 'a'.charCodeAt(0);