Dinoscape DinoscapeProgramming

## yolkweb – templates
rvOtzPKC37

## youtube.js
// definition

function videoExists(url) {
  var exists;
  var video;
  try {
    video = new URL(url);
  } catch {
    throw new Error("Invalid URL 😳")
  }
	// definition

	function videoExists(url) {
	var exists;
	var video;
	try {
	video = new URL(url);
	} catch {
	throw new Error("Invalid URL 😳")
	}