wooorm/longest-streak

Count the longest repeating streak of a substring

longest-streak

Get the count of the longest repeating streak of substring in value.

Contents

• What is this?
• When should I use this?
• Install
• Use
• API
  • longestStreak(value, substring)
• Types
• Compatibility
• Security
• Related
• Contribute
• License

What is this?

This is a tiny package that finds the count of the longest adjacent repeating substring.

When should I use this?

This package is rather niche. I use it for serializing markdown ASTs (particularly fenced code and math).

You can use ccount if you need the total count of substrings occuring in a value.

Install

This package is ESM only. In Node.js (version 14.14+, 16.0+), install with npm:

npm install longest-streak

In Deno with esm.sh:

import {longestStreak} from 'https://esm.sh/longest-streak@3'

In browsers with esm.sh:

<script type="module">
  import {longestStreak} from 'https://esm.sh/longest-streak@3?bundle'
</script>

Use

import {longestStreak} from 'longest-streak'

longestStreak('` foo `` bar `', '`') // => 2

API

This package exports the identifier longestStreak. There is no default export.

longestStreak(value, substring)

Get the count of the longest repeating streak of substring in value.

Parameters

• value (string) — content to search in
• substring (string) — substring to look for, typically one character

Returns

Count of most frequent adjacent substrings in value (number).

Types

This package is fully typed with TypeScript. It exports no additional types.

Compatibility

This package is at least compatible with all maintained versions of Node.js. As of now, that is Node.js 14.14+ and 16.0+. It also works in Deno and modern browsers.

Security

This package is safe.

Related

• wooorm/ccount — count the total number of substrings in value
• wooorm/direction — detect directionality: left-to-right, right-to-left, or neutral

Contribute

Yes please! See How to Contribute to Open Source.

License

MIT © Titus Wormer