# unicode-canonical-property-names-ecmascript [](https://travis-ci.org/mathiasbynens/unicode-canonical-property-names-ecmascript) [](https://www.npmjs.com/package/unicode-canonical-property-names-ecmascript) _unicode-canonical-property-names-ecmascript_ exports the set of canonical Unicode property names that are supported in [ECMAScript RegExp property escapes](https://github.com/tc39/proposal-regexp-unicode-property-escapes). ## Installation To use _unicode-canonical-property-names-ecmascript_, install it as a dependency via [npm](https://www.npmjs.com/): ```bash $ npm install unicode-canonical-property-names-ecmascript ``` Then, `require` it: ```js const properties = require('unicode-canonical-property-names-ecmascript'); ``` ## Example ```js properties.has('ID_Start'); // → true properties.has('IDS'); // → false ``` ## For maintainers ### How to publish a new release 1. On the `main` branch, bump the version number in `package.json`: ```sh npm version patch -m 'Release v%s' ``` Instead of `patch`, use `minor` or `major` [as needed](https://semver.org/). Note that this produces a Git commit + tag. 1. Push the release commit and tag: ```sh git push && git push --tags ``` Our CI then automatically publishes the new release to npm. ## Author | [](https://twitter.com/mathias "Follow @mathias on Twitter") | |---| | [Mathias Bynens](https://mathiasbynens.be/) | ## License _unicode-canonical-property-names-ecmascript_ is available under the [MIT](https://mths.be/mit) license.