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  1. # unicode-canonical-property-names-ecmascript [![Build status](https://travis-ci.org/mathiasbynens/unicode-canonical-property-names-ecmascript.svg?branch=master)](https://travis-ci.org/mathiasbynens/unicode-canonical-property-names-ecmascript)
  2. _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).
  3. ## Installation
  4. To use _unicode-canonical-property-names-ecmascript_, install it as a dependency via [npm](https://www.npmjs.com/):
  5. ```bash
  6. $ npm install unicode-canonical-property-names-ecmascript
  7. ```
  8. Then, `require` it:
  9. ```js
  10. const properties = require('unicode-canonical-property-names-ecmascript');
  11. ```
  12. ## Example
  13. ```js
  14. properties.has('ID_Start');
  15. // → true
  16. properties.has('IDS');
  17. // → false
  18. ```
  19. ## Author
  20. | [![twitter/mathias](https://gravatar.com/avatar/24e08a9ea84deb17ae121074d0f17125?s=70)](https://twitter.com/mathias "Follow @mathias on Twitter") |
  21. |---|
  22. | [Mathias Bynens](https://mathiasbynens.be/) |
  23. ## License
  24. _unicode-canonical-property-names-ecmascript_ is available under the [MIT](https://mths.be/mit) license.