Сергей Галич

let canBuildString1 = (s1, s2) => {
    const obj = {};
    let str1 = s1.replace(/\s/g, '');
    let str2 = s2.replace(/\s/g, '');
    let canBuild = str1.length === str2.length;

    if (canBuild) {
        str1.split('').forEach((char) => {
            obj[char] = obj[char]
                ? obj[char] + 1
                : 1;
        });
        str2.split('').forEach((char) => {
            if (!obj[char]) {
                canBuild = false;
                return;
            }
            obj[char]--;
        });
    }

    return canBuild;
};

console.log(canBuildString1('clockwise', 'clockwork'));