53 lines
1.0 KiB
Markdown
53 lines
1.0 KiB
Markdown
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# semver-diff [](https://travis-ci.org/sindresorhus/semver-diff)
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> Get the diff type of two [semver](https://github.com/isaacs/node-semver) versions: `0.0.1 0.0.2` → `patch`
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## Install
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```sh
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$ npm install --save semver-diff
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```
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## Usage
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```js
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var semverDiff = require('semver-diff');
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semverDiff('1.1.1', '1.1.2');
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//=> 'patch'
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semverDiff('0.0.1', '1.0.0');
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//=> 'major'
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semverDiff('0.0.1', '0.1.0');
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//=> 'minor'
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semverDiff('0.0.1-foo', '0.0.1-foo.bar');
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//=> 'prerelease'
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semverDiff('0.1.0', '0.1.0+foo');
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//=> 'build'
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semverDiff('0.0.1', '0.0.1');
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//=> null
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semverDiff('0.0.2', '0.0.1');
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//=> null
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```
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## API
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### semverDiff(versionA, versionB)
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Returns the difference type between two semver versions, or `null` if they're identical or the second one is lower than the first.
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Possible values: `'major'`, `'minor'`, `'patch'`, `'prerelease'`, `'build'`, `null`.
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## License
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MIT © [Sindre Sorhus](http://sindresorhus.com)
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