walkDom.js

module.exports = (node, callback) => {
	if (node.childNodes) {
		for (let index = 0; index < node.childNodes.length; index++) {
			const child = node.childNodes[index]
			const next = callback(child)

			if (!next) {
				walk(child, callback)
			}
		}
	}

	if (node.shadowRoot) {
		walk(node.shadowRoot, callback)
	}
}