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+# is-decimal
+
+[![Build][build-badge]][build]
+[![Coverage][coverage-badge]][coverage]
+[![Downloads][downloads-badge]][downloads]
+[![Size][size-badge]][size]
+
+Check if a character is a decimal.
+
+## Contents
+
+*   [What is this?](#what-is-this)
+*   [When should I use this?](#when-should-i-use-this)
+*   [Install](#install)
+*   [Use](#use)
+*   [API](#api)
+    *   [`isDecimal(character|code)`](#isdecimalcharactercode)
+*   [Types](#types)
+*   [Compatibility](#compatibility)
+*   [Security](#security)
+*   [Related](#related)
+*   [Contribute](#contribute)
+*   [License](#license)
+
+## What is this?
+
+This is a function that checks if a given character is an ASCII decimal.
+
+## When should I use this?
+
+Not often, as it’s relatively simple to do yourself.
+This package exists because it’s needed in several related packages, at which
+point it becomes useful to defer to one shared function.
+
+## Install
+
+This package is [ESM only][esm].
+In Node.js (version 12.20+, 14.14+, or 16.0+), install with [npm][]:
+
+```sh
+npm install is-decimal
+```
+
+In Deno with [Skypack][]:
+
+```js
+import {isDecimal} from 'https://cdn.skypack.dev/is-decimal@2?dts'
+```
+
+In browsers with [Skypack][]:
+
+```html
+<script type="module">
+  import {isDecimal} from 'https://cdn.skypack.dev/is-decimal@2?min'
+</script>
+```
+
+## Use
+
+```js
+import {isDecimal} from 'is-decimal'
+
+isDecimal('0') // => true
+isDecimal('9') // => true
+isDecimal('a') // => false
+isDecimal('💩') // => false
+```
+
+## API
+
+This package exports the following identifiers: `isDecimal`.
+There is no default export.
+
+### `isDecimal(character|code)`
+
+Check whether the given character code (`number`), or the character code at the
+first position (`string`), is decimal.
+
+## Types
+
+This package is fully typed with [TypeScript][].
+
+## Compatibility
+
+This package is at least compatible with all maintained versions of Node.js.
+As of now, that is Node.js 12.20+, 14.14+, and 16.0+.
+It also works in Deno and modern browsers.
+
+## Security
+
+This package is safe.
+
+## Related
+
+*   [`wooorm/is-alphabetical`](https://github.com/wooorm/is-alphabetical)
+*   [`wooorm/is-hexadecimal`](https://github.com/wooorm/is-hexadecimal)
+*   [`wooorm/is-whitespace-character`](https://github.com/wooorm/is-whitespace-character)
+*   [`wooorm/is-word-character`](https://github.com/wooorm/is-word-character)
+
+## Contribute
+
+Yes please!
+See [How to Contribute to Open Source][contribute].
+
+## License
+
+[MIT][license] © [Titus Wormer][author]
+
+<!-- Definitions -->
+
+[build-badge]: https://github.com/wooorm/is-decimal/workflows/main/badge.svg
+
+[build]: https://github.com/wooorm/is-decimal/actions
+
+[coverage-badge]: https://img.shields.io/codecov/c/github/wooorm/is-decimal.svg
+
+[coverage]: https://codecov.io/github/wooorm/is-decimal
+
+[downloads-badge]: https://img.shields.io/npm/dm/is-decimal.svg
+
+[downloads]: https://www.npmjs.com/package/is-decimal
+
+[size-badge]: https://img.shields.io/bundlephobia/minzip/is-decimal.svg
+
+[size]: https://bundlephobia.com/result?p=is-decimal
+
+[npm]: https://docs.npmjs.com/cli/install
+
+[skypack]: https://www.skypack.dev
+
+[license]: license
+
+[author]: https://wooorm.com
+
+[esm]: https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c
+
+[typescript]: https://www.typescriptlang.org
+
+[contribute]: https://opensource.guide/how-to-contribute/