expands comments on click

hup-comment-expand.js

var comments = document.querySelector('#comments');

function findParentComment(elem) {
    while (elem && elem.parentNode) {
        if (elem.classList.contains('comment')) {
            return elem;
        }
        elem = elem.parentNode;
    }
    
    return null;
}

function removeIndent(elem) {
    while (elem && elem.parentNode) {
        if (elem.classList.contains('indented')) {
            elem.style.marginLeft = '0'
        }
        elem = elem.parentNode;
    }
}

document.body.addEventListener('click', function (e) {
    Array.prototype.slice.call(document.querySelectorAll('.indented')).forEach(function (elem) {
        elem.style.marginLeft = '';
    });
    
    if (e.target.nodeName.toUpperCase() !== 'A') {
        var c = findParentComment(e.target);
        if (c) {
            removeIndent(c);
        }
    }
});

Array.prototype.slice.call(document.querySelectorAll('.indented')).forEach(function (elem) {
    elem.style.transition = 'margin 0.5s';
});