Validate File Upload Filetype with the HTML Accept Attribute

In this lesson, learn how to validate file types with the built-in html accept attribute. The accept attribute takes a comma separated list of MIME types, file extensions, or MIME types with wildcards (*) for the subtype. These are known as the “unique file type specifier”.

Links

• MDN - HTML Attribute: accept
• MDN - Unique File Type Specifiers
• MDN - Limiting Accepted File Types