如何创建装饰器以验证打字稿中的图像 URL

Question

I have to validate an image by its URI or its type. If i use this regex pattern it validates only the link (http(s?):)([/|.|\\w|\\s|-])*\\.(?:jpg|gif|png) ends with this types but in my case it should validate both like. It should accept URL or else file type.
Eg:
1) https://thevarsity.ca/wp-content/uploads/2019/09/ARTS-TIFF_REVIEW-COURTESY_PHOTOKINO_LORBER-IMAGE_BOOK_STILL-1080x720.jpg
2) Should accept image types like PNG,JPG,JPEG,GIF.
sdfdsadasdsadsfdsf.png

And am looking of the solution.

Answer 1

You can check against multiple regex statements by separating them with | like regex_one|regex_two

To check for the end portion say the extension, you can use $ symbol

Hope the below mentioned regex works for you.

/(http(s?):)([\/|.|\w|\s|-])*\.(?:jpg$|gif$|png$)|([\/|.|\w|\s|-])*\.(?:jpg$|gif$|png$)/