Searches for a comment in target document

getCommentsByText.js

/**
 * Searches for a comment in target document
 *
 * @author Gabe M
 * @param {string} commentText - Comment text to search for
 * @param {Node} [target=document] - Parent target to search through
 * @return {Array<Node>}
 */
function getCommentsByText(commentText, target = document) {
    const nodeList = [];
    const treeWalker = document.createTreeWalker(
        target,
        NodeFilter.SHOW_COMMENT,
        {
            acceptNode(node) {
                return node.nodeValue === commentText
                    ? NodeFilter.FILTER_ACCEPT
                    : NodeFilter.FILTER_REJECT;
            },
        }
    );

    // Walk Tree
    while (treeWalker.nextNode()) nodeList.push(treeWalker.currentNode);

    return nodeList;
}