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# unicode-property-value-aliases-ecmascript [](https://travis-ci.org/mathiasbynens/unicode-property-value-aliases-ecmascript) [](https://www.npmjs.com/package/unicode-property-value-aliases-ecmascript)
_unicode-property-value-aliases-ecmascript_ offers Unicode property value alias mappings in an easy-to-consume JavaScript format.
It only contains the Unicode property names and values that are supported in [ECMAScript RegExp property escapes](https://github.com/tc39/proposal-regexp-unicode-property-escapes).
It’s based on Unicode’s `PropertyValueAliases.txt`.
## Installation
To use _unicode-property-value-aliases-ecmascript_ programmatically, install it as a dependency via [npm](https://www.npmjs.com/):
```bash
$ npm install unicode-property-value-aliases-ecmascript
```
Then, `require` it:
```js
const propertyValueAliases = require('unicode-property-value-aliases-ecmascript');
```
## Usage
This module exports a `Map` object of which the keys are canonical property names and the values are `Map`s from property value aliases to canonical property value names. The most common usage is to convert a property value alias to its canonical form:
```js
propertyValueAliases.get(property).get(propertyValue)
```
Examples:
```js
propertyValueAliases.get('General_Category').get('L')
// → 'Letter'
propertyValueAliases.get('Script').get('Aghb')
// → 'Caucasian_Albanian'
propertyValueAliases.get('Script_Extensions').get('Aghb')
// → 'Caucasian_Albanian'
```
## 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-property-value-aliases-ecmascript_ is available under the [MIT](https://mths.be/mit) license.
|
