Ирина Рубан 2

<script>
    function checkLines (firstLine, secondLine) {
        var firstLineElements = firstLine.split(''),
            secondLineElements = secondLine.split(''),
            hasElement = 0,
            result,
            i, j;

        for (i = 0; i < secondLineElements.length; i++) {
            for (j = 0; j < firstLineElements.length; j++) {
                if (secondLineElements[i] === firstLineElements[j]) {
                    hasElement++;
                    delete firstLineElements[j];

                    break;
                } else if (secondLineElements[i] === ' ') {
                    hasElement++;

                    break;
                }
            }
        }

        result = (hasElement === secondLineElements.length);

        return result;
    }
</script>