ImageDecoder: isTypeSupported() static method

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The ImageDecoder.isTypeSupported() static method checks if a given MIME type can be decoded by the user agent.

Syntax

ImageDecoder.isTypeSupported(type)

Parameters

type: A string containing the MIME type to check for decoding support.

Return value

A promise that resolves with a boolean value indicating whether images with a format of type can be decoded by the API.

Examples

The following example checks if GIF and PCX images are supported for decoding and prints the result to the console.

let isGifSupported = await ImageDecoder.isTypeSupported("image/gif");
console.log(`GIF supported: ${isGifSupported}`); // Likely true.

let isPcxSupported = await ImageDecoder.isTypeSupported("image/pcx");
console.log(`PCX supported: ${isPcxSupported}`); // Probably false

Specifications

Specification
WebCodecs # dom-imagedecoder-istypesupported

Browser compatibility

BCD tables only load in the browser