151 lines
3.5 KiB
Markdown
151 lines
3.5 KiB
Markdown
# longest-streak
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[![Build][build-badge]][build]
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[![Coverage][coverage-badge]][coverage]
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[![Downloads][downloads-badge]][downloads]
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[![Size][size-badge]][size]
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Get the count of the longest repeating streak of `substring` in `value`.
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## Contents
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* [What is this?](#what-is-this)
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* [When should I use this?](#when-should-i-use-this)
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* [Install](#install)
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* [Use](#use)
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* [API](#api)
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* [`longestStreak(value, substring)`](#longeststreakvalue-substring)
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* [Types](#types)
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* [Compatibility](#compatibility)
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* [Security](#security)
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* [Related](#related)
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* [Contribute](#contribute)
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* [License](#license)
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## What is this?
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This is a tiny package that finds the count of the longest adjacent repeating
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substring.
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## When should I use this?
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This package is rather niche.
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I use it for serializing markdown ASTs (particularly fenced code and math).
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You can use [`ccount`][ccount] if you need the total count of substrings
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occuring in a value.
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## Install
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This package is [ESM only][esm].
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In Node.js (version 14.14+, 16.0+), install with [npm][]:
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```sh
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npm install longest-streak
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```
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In Deno with [`esm.sh`][esmsh]:
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```js
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import {longestStreak} from 'https://esm.sh/longest-streak@3'
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```
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In browsers with [`esm.sh`][esmsh]:
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```html
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<script type="module">
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import {longestStreak} from 'https://esm.sh/longest-streak@3?bundle'
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</script>
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```
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## Use
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```js
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import {longestStreak} from 'longest-streak'
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longestStreak('` foo `` bar `', '`') // => 2
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```
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## API
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This package exports the identifier `longestStreak`.
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There is no default export.
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### `longestStreak(value, substring)`
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Get the count of the longest repeating streak of `substring` in `value`.
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###### Parameters
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* `value` (`string`) — content to search in
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* `substring` (`string`) — substring to look for, typically one character
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###### Returns
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Count of most frequent adjacent `substring`s in `value` (`number`).
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## Types
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This package is fully typed with [TypeScript][].
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It exports no additional types.
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## Compatibility
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This package is at least compatible with all maintained versions of Node.js.
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As of now, that is Node.js 14.14+ and 16.0+.
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It also works in Deno and modern browsers.
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## Security
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This package is safe.
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## Related
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* [`wooorm/ccount`](https://github.com/wooorm/ccount)
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— count the total number of `substring`s in `value`
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* [`wooorm/direction`](https://github.com/wooorm/direction)
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— detect directionality: left-to-right, right-to-left, or neutral
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## Contribute
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Yes please!
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See [How to Contribute to Open Source][contribute].
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## License
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[MIT][license] © [Titus Wormer][author]
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<!-- Definitions -->
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[build-badge]: https://github.com/wooorm/longest-streak/workflows/main/badge.svg
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[build]: https://github.com/wooorm/longest-streak/actions
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[coverage-badge]: https://img.shields.io/codecov/c/github/wooorm/longest-streak.svg
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[coverage]: https://codecov.io/github/wooorm/longest-streak
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[downloads-badge]: https://img.shields.io/npm/dm/longest-streak.svg
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[downloads]: https://www.npmjs.com/package/longest-streak
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[size-badge]: https://img.shields.io/bundlephobia/minzip/longest-streak.svg
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[size]: https://bundlephobia.com/result?p=longest-streak
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[npm]: https://docs.npmjs.com/cli/install
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[esmsh]: https://esm.sh
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[license]: license
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[author]: https://wooorm.com
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[esm]: https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c
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[typescript]: https://www.typescriptlang.org
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[contribute]: https://opensource.guide/how-to-contribute/
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[ccount]: https://github.com/wooorm/ccount
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