js get meta tag name

1document.getElementsByTagName("meta").generator.getAttribute('version');

1function getMeta(metaName) {
2  const metas = document.getElementsByTagName('meta');
3
4  for (let i = 0; i < metas.length; i++) {
5    if (metas[i].getAttribute('name') === metaName) {
6      return metas[i].getAttribute('content');
7    }
8  }
9
10  return '';
11}
12
13console.log(getMeta('video'));