Import Attributes support in tools

Tools:

• Webpack
• Rollup
• Babel (babel/babel#15536)
• SWC (swc-project/swc#7179)
• ESLint
• TypeScript (microsoft/TypeScript#53656)

Engines:

• V8 (Chrome, Edge, Note.js, Deno)
• SpiderMonkey (Firefox)
• JSC (Safari)
• XS

Notes:

• V8 currently supports the assert syntax, whose removal is being investigated.
• Bun uses JSC, but supports import attributes by internally transpiling them.

Webpack

Supported since version 5.48.0; make sure that its acorn-import-assertions dependency is at least version 1.9.0.

Run npm ci and npm run webpack; it will bundle src/ to dist/out.webpack.js

Rollup

Supported since v3.22.1.

Run npm ci and npm run rollup; it will bundle src/ to dist/out.rollup.js