Skip to main content
Deno 2 is finally here 🎉️
Learn more
Go to Latest
The Standard Library has been moved to JSR. See the blog post for details.
function extension
import { extension } from "https://deno.land/std@0.220.1/media_types/extension.ts";

For a given media type, return the most relevant extension, or undefined if no extension can be found.

Extensions are returned without a leading ..

Examples

Example 1

import { extension } from "https://deno.land/std@0.220.1/media_types/extension.ts";

extension("text/plain"); // "txt"
extension("application/json"); // "json"
extension("text/html; charset=UTF-8"); // "html"
extension("application/foo"); // undefined

Parameters

type: string

Returns

string | undefined