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# is-alphanumerical [![Build][build-badge]][build] [![Coverage][coverage-badge]][coverage] [![Downloads][downloads-badge]][downloads] [![Size][size-badge]][size] Check if a character is alphanumerical (`[a-zA-Z0-9]`). ## Installation [npm][]: ```bash npm install is-alphanumerical ``` ## Usage ```javascript var alphanumerical = require('is-alphanumerical') alphanumerical('a') // => true alphanumerical('Z') // => true alphanumerical('0') // => true alphanumerical(' ') // => false alphanumerical('💩') // => false ``` ## API ### `alphanumerical(character)` Check whether the given character code (`number`), or the character code at the first position (`string`), is alphanumerical. ## Related * [`is-alphabetical`](https://github.com/wooorm/is-alphabetical) * [`is-decimal`](https://github.com/wooorm/is-decimal) * [`is-hexadecimal`](https://github.com/wooorm/is-hexadecimal) * [`is-whitespace-character`](https://github.com/wooorm/is-whitespace-character) * [`is-word-character`](https://github.com/wooorm/is-word-character) ## License [MIT][license] © [Titus Wormer][author] <!-- Definitions --> [build-badge]: https://img.shields.io/travis/wooorm/is-alphanumerical.svg [build]: https://travis-ci.org/wooorm/is-alphanumerical [coverage-badge]: https://img.shields.io/codecov/c/github/wooorm/is-alphanumerical.svg [coverage]: https://codecov.io/github/wooorm/is-alphanumerical [downloads-badge]: https://img.shields.io/npm/dm/is-alphanumerical.svg [downloads]: https://www.npmjs.com/package/is-alphanumerical [size-badge]: https://img.shields.io/bundlephobia/minzip/is-alphanumerical.svg [size]: https://bundlephobia.com/result?p=is-alphanumerical [npm]: https://docs.npmjs.com/cli/install [license]: license [author]: https://wooorm.com