61 lines
1.5 KiB
Markdown
61 lines
1.5 KiB
Markdown
# @babel/plugin-proposal-unicode-property-regex
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Compile [Unicode property escapes](https://github.com/mathiasbynens/regexpu-core/blob/master/property-escapes.md) (`\p{…}` and `\P{…}`) in Unicode regular expressions to ES5 or ES6 that works in today’s environments.
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[Here’s an online demo.](https://mothereff.in/regexpu#input=var+regex+%3D+/%5Cp%7BScript_Extensions%3DGreek%7D/u%3B&unicodePropertyEscape=1)
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## Installation
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```sh
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npm install --save-dev @babel/plugin-proposal-unicode-property-regex
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```
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## Usage
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### Via `.babelrc` (recommended)
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`.babelrc`
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```json
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{
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"plugins": ["@babel/plugin-proposal-unicode-property-regex"]
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}
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```
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### Via CLI
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```sh
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babel --plugins @babel/@babel/plugin-proposal-unicode-property-regex script.js
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```
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### Via Node.js API
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```js
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require("@babel/core").transform(code, {
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"plugins": ["@babel/plugin-proposal-unicode-property-regex"]
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});
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```
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To transpile to ES6/ES2015:
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```js
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require("@babel/core").transform(code, {
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"plugins": [
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["@babel/plugin-proposal-unicode-property-regex", { "useUnicodeFlag": false }]
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]
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});
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```
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## Options
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* `useUnicodeFlag` (defaults to `true`)
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When disabled with `false`, the transform converts Unicode regexes to
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non-Unicode regexes for wider support, removing the `u` flag. See https://github.com/mathiasbynens/regexpu-core#useunicodeflag-default-false for more information.
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## Author
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| [](https://twitter.com/mathias "Follow @mathias on Twitter") |
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| [Mathias Bynens](https://mathiasbynens.be/) |
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