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- Convert project to Javascript/Typescript - Allow custom headers to be passed in (optional) - Allow body to be optional
99 lines
2.2 KiB
Markdown
99 lines
2.2 KiB
Markdown
# import/named
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Verifies that all named imports are part of the set of named exports in the referenced module.
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For `export`, verifies that all named exports exist in the referenced module.
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Note: for packages, the plugin will find exported names
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from [`jsnext:main`], if present in `package.json`.
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Redux's npm module includes this key, and thereby is lintable, for example.
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A module path that is [ignored] or not [unambiguously an ES module] will not be reported when imported. Note that type imports and exports, as used by [Flow], are always ignored.
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[ignored]: ../../README.md#importignore
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[unambiguously an ES module]: https://github.com/bmeck/UnambiguousJavaScriptGrammar
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[Flow]: https://flow.org/
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## Rule Details
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Given:
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```js
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// ./foo.js
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export const foo = "I'm so foo"
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```
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The following is considered valid:
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```js
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// ./bar.js
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import { foo } from './foo'
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// ES7 proposal
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export { foo as bar } from './foo'
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// node_modules without jsnext:main are not analyzed by default
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// (import/ignore setting)
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import { SomeNonsenseThatDoesntExist } from 'react'
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```
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...and the following are reported:
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```js
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// ./baz.js
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import { notFoo } from './foo'
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// ES7 proposal
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export { notFoo as defNotBar } from './foo'
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// will follow 'jsnext:main', if available
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import { dontCreateStore } from 'redux'
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```
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### Settings
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[`import/ignore`] can be provided as a setting to ignore certain modules (node_modules,
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CoffeeScript, CSS if using Webpack, etc.).
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Given:
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```yaml
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# .eslintrc (YAML)
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---
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settings:
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import/ignore:
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- node_modules # included by default, but replaced if explicitly configured
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- *.coffee$ # can't parse CoffeeScript (unless a custom polyglot parser was configured)
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```
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and
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```coffeescript
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# ./whatever.coffee
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exports.whatever = (foo) -> console.log foo
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```
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then the following is not reported:
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```js
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// ./foo.js
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// can't be analyzed, and ignored, so not reported
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import { notWhatever } from './whatever'
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```
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## When Not To Use It
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If you are using CommonJS and/or modifying the exported namespace of any module at
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runtime, you will likely see false positives with this rule.
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## Further Reading
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- [`import/ignore`] setting
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- [`jsnext:main`] (Rollup)
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[`jsnext:main`]: https://github.com/rollup/rollup/wiki/jsnext:main
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[`import/ignore`]: ../../README.md#importignore
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