Function find

src/utils.js:131–145

(ctx, tagName, iterator)

function find(ctx, tagName, iterator) {
	if (ctx) {
		let list = ctx.getElementsByTagName(tagName), i = 0, n = list.length;

		if (iterator) {
			for (; i < n; i++) {
				iterator(list[i], i);
			}
		}

		return list;
	}

	return [];
}