Евгений Павленко

function isPossible (str1, str2) {
    var possible = true;

    var chars1 = str1.split('');
    var chars2 = str2.split('');

    chars2.forEach(function (char) {
        if (char === ' ') {
            return;
        }

        if (-1 === chars1.indexOf(char)) {
            possible = false;
        }
    });

    return possible;
}

console.log(isPossible('clockwise', 'is clock'));