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@ava/babel-preset-stage-4-4.0.0
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مشاهده بیشترتوضیحات
Efficiently applies the minimum of transforms to run stage 4 code on Node.js 6, 8 and 10
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | @ava/babel-preset-stage-4-4.0.0 |
| نام | @ava/babel-preset-stage-4 |
| نسخه کتابخانه | 4.0.0 |
| نگهدارنده | ['sindresorhus', 'novemberborn'] |
| ایمیل نگهدارنده | ['sindresorhus@gmail.com', 'mark@novemberborn.net'] |
| نویسنده | Mark Wubben |
| ایمیل نویسنده | - |
| آدرس صفحه اصلی | git+https://github.com/avajs/babel-preset-stage-4.git |
| آدرس اینترنتی | https://github.com/avajs/babel-preset-stage-4#readme |
| مجوز | MIT |
# @ava/babel-preset-stage-4 [](https://travis-ci.org/avajs/babel-preset-stage-4)
> [Babel] preset for use with [AVA]
Aspires to bring [finished ECMAScript proposals](https://github.com/tc39/proposals/blob/master/finished-proposals.md) to AVA's test and helper files.
Efficiently applies the minimum of transforms to run the latest JavaScript syntax on Node.js 8, 10 and 12.
Built-ins are not added or extended, so features like Proxies, `Array.prototype.includes` or `String.prototype.padStart` will only be available if the Node.js version running the tests supports it. Consult [node.green] for details.
Sometimes a particular feature is *mostly* implemented in Node.js. In that case transforms are not applied.
Not all proposals can be supported via Babel transforms, see below for details. Babel may require "syntax" plugins in order to parse certain files. These plugins should be applied explicitly since this preset may not include them.
## Install
```console
$ npm install --save @ava/babel-preset-stage-4
```
## Usage
Add `@ava/stage-4` to your [Babel] presets.
### Options
For more information on setting options for a preset, refer to the [preset options] documentation.
#### `modules`
By default this preset transform ES2015 modules to CommonJS. Set to `false` to disable this behavior. Other values are ignored.
## Supported proposals
| Proposal | Supported
| ------------------------------------------------------------------------ | ---------
| [`Array.prototype.includes`][array-includes] | No
| [`Object.values`/`Object.entries`][object-values-entries] | No
| [String padding][string-padding] | No
| [`Object.getOwnPropertyDescriptors`][object-gopds] | No
| [Trailing commas in function parameter lists and calls][function-commas] | Yes
| [Shared memory and atomics][atomics] | No
| [Lifting template literal restriction][template-literal-lift] | No
| [`s` (`dotAll`) flag for regular expressions][dot-all] | Yes
| [RegExp named capture groups][named-groups] | No
| [RegExp Lookbehind Assertions][lookbehind] | No
| [RegExp Unicode Property Escapes][unicode-escapes] | No
| [`Promise.prototype.finally`][finally] | No
| [Asynchronous Iteration][async-iteration] | Partially<sup>†</sup>
| [Optional `catch` binding][optional-catch] | Yes
| [JSON superset][json-superset] | No
| [`Symbol.prototype.description`][symbol-description] | No
| [`Function.prototype.toString` revision][function-tostring-revision] | No
| [`Object.fromEntries`][object-fromentries] | No
| [Well-formed `JSON.stringify`][well-formed-stringify] | No
| [`String.prototype.{trimStart,trimEnd}`][string-left-right-trim] | No
| [`Array.prototype.{flat,flatMap}`][flatmap] | No
| [`String.prototype.matchAll`][string-matchall] | No
| [`import()`][dynamic-import] | Yes
| [`Promise.allSettled`][promise-allsettled] | No
† [`@babel/plugin-proposal-async-generator-functions`](https://www.npmjs.com/package/@babel/plugin-proposal-async-generator-functions) relies on `Symbol.asyncIterator`, which AVA does not polyfill for you.
[AVA]: https://ava.li
[Babel]: https://babeljs.io
[node.green]: http://node.green
[preset options]: http://babeljs.io/docs/plugins/#pluginpreset-options
[array-includes]: https://github.com/tc39/Array.prototype.includes
[object-values-entries]: https://github.com/tc39/proposal-object-values-entries
[string-padding]: https://github.com/tc39/proposal-string-pad-start-end
[object-gopds]: https://github.com/ljharb/proposal-object-getownpropertydescriptors
[function-commas]: https://github.com/tc39/proposal-trailing-function-commas
[atomics]: https://github.com/tc39/ecmascript_sharedmem
[template-literal-lift]: https://github.com/tc39/proposal-template-literal-revision
[dot-all]: https://github.com/tc39/proposal-regexp-dotall-flag
[named-groups]: https://github.com/tc39/proposal-regexp-named-groups
[lookbehind]: https://github.com/tc39/proposal-regexp-lookbehind
[unicode-escapes]: https://github.com/tc39/proposal-regexp-unicode-property-escapes
[finally]: https://github.com/tc39/proposal-promise-finally
[async-iteration]: https://github.com/tc39/proposal-async-iteration
[optional-catch]: https://github.com/tc39/proposal-optional-catch-binding
[json-superset]: https://github.com/tc39/proposal-json-superset
[symbol-description]: https://github.com/tc39/proposal-Symbol-description
[function-tostring-revision]: https://github.com/tc39/Function-prototype-toString-revision
[object-fromentries]: https://github.com/tc39/proposal-object-from-entries
[well-formed-stringify]: https://github.com/tc39/proposal-well-formed-stringify
[string-left-right-trim]: https://github.com/tc39/proposal-string-left-right-trim
[flatmap]: https://github.com/tc39/proposal-flatMap
[string-matchall]: https://github.com/tc39/String.prototype.matchAll
[dynamic-import]: https://github.com/tc39/proposal-dynamic-import
[promise-allsettled]: https://github.com/tc39/proposal-promise-allSettled
نیازمندی
| مقدار | نام |
|---|---|
| ^7.2.0 | @babel/plugin-proposal-async-generator-functions |
| ^7.5.0 | @babel/plugin-proposal-dynamic-import |
| ^7.2.0 | @babel/plugin-proposal-optional-catch-binding |
| ^7.4.4 | @babel/plugin-transform-dotall-regex |
| ^7.5.0 | @babel/plugin-transform-modules-commonjs |
زبان مورد نیاز
| مقدار | نام |
|---|---|
| 12.8.0 | Npm |
نحوه نصب
نصب پکیج tgz @ava/babel-preset-stage-4-4.0.0:
npm install @ava/babel-preset-stage-4-4.0.0.tgz