What is MIME type "application/typescript"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

application/typescript signals that a file is written in the TypeScript language. It tells operating systems, browsers, and development tools how to process the file properly.

TypeScript is a superset of JavaScript. It comes with static types and additional language features that improve code reliability. Files with this MIME type are meant to be compiled into standard JavaScript so browsers can run them.

Files labeled with this MIME type typically have extensions such as TS, CTS, or MTS. They alert tools and servers to use the correct processing pipeline of a TypeScript compiler.

Content Handling: Servers deliver these files with proper encoding and instructions for processing.
Development Process: Build systems and compilers transform TypeScript into JavaScript.
Modern Frameworks: Frequently used in projects built with frameworks like Angular and React.

For more details on the language, visit the TypeScript official website.

Associated file extensions

.ts, .cts, .mts

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:


    Content-Type: application/typescript

HTML

In HTML, you can specify the MIME type in various elements:


    <a href="file.dat" type="application/typescript">Download file</a>

Server-side (Node.js)

Setting the Content-Type header in Node.js:


    const http = require('http');
    
    http.createServer((req, res) => {
      res.setHeader('Content-Type', 'application/typescript');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.ts, .cts, .mts

FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why are multiple MIME types listed for one extension?

Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.