Get the direction of text selection

forward If the user selects text from left to right , Then the following function returns . In another case, it will return backward.

const getDirection = function () {
    const selection = window.getSelection();
    const range = document.createRange();
    range.setStart(selection.anchorNode, selection.anchorOffset);
    range.setEnd(selection.focusNode, selection.focusOffset);

    return range.collapsed ? 'backward' : 'forward';
};