正規表現 #js #note

imageUrl.js

// https://regex101.com/r/gXDhi9/1

isValidImageUrl = (url) => {
  const imgReg =
    /^(?:(?<scheme>[^:/?#]+):)?(?:\/\/(?<authority>[^/?#]*))?(?<path>[^?#]*\/)?(?<file>[^?#]*\.(?<extension>[Jj][Pp][Ee]?[Gg]|[Pp][Nn][Gg]|[Gg][Ii][Ff]|[Ss][Vv][Gg]|[Ww][Ee][Bb][Pp]))(?:\?(?<query>[^#]*))?(?:#(?<fragment>.*))?$/gm;
  return imgReg.test(url);
};

url.js

/https?:\/\/[\w/:%#\$&\?\(\)~\.=\+\-]+/;

youtube.js

/https:\/\/(www\.)?(youtube\.com\/watch\?v=|youtu\.be\/)+[\S]{11}/;