Can I Unicode‽

It depends.

Build

To generate the output data, run:

npm run build

output has the following subdirectories:

• output/delta contains one file per Unicode version that changes the JavaScript identifier grammar.
• output/test262 contains Test262 tests based on the same data, which can be upstreamed to the test/language/identifiers/ directory.
• output/web is a small web app that lists Unicode version support across various JavaScript features in major browsers.