Check if a character is alphanumerical.

• What is this?
• When should I use this?
• Install
• Use
• API
  • isAlphanumerical(character)
• Types
• Compatibility
• Security
• Related
• Contribute
• License

This is a function that checks if a given character is ASCII alphanumerical: it matches [a-zA-Z0-9].

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.

This package is ESM only. In Node.js (version 12.20+, 14.14+, or 16.0+), install with npm:

npm install is-alphanumerical

In Deno with Skypack:

import {isAlphanumerical} from 'https://cdn.skypack.dev/is-alphanumerical@2?dts'

In browsers with Skypack:

<script type="module">
  import {isAlphanumerical} from 'https://cdn.skypack.dev/is-alphanumerical@2?min'
</script>

import {isAlphanumerical} from 'is-alphanumerical'

isAlphanumerical('a') // => true
isAlphanumerical('Z') // => true
isAlphanumerical('0') // => true
isAlphanumerical(' ') // => false
isAlphanumerical('💩') // => false

This package exports the following identifier: isAlphanumerical. There is no default export.

Check whether the given character code (number), or the character code at the first position (string), is alphanumerical.

This package is fully typed with TypeScript.

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.

This package is safe.

• wooorm/is-alphabetical
• wooorm/is-decimal
• wooorm/is-hexadecimal
• wooorm/is-whitespace-character
• wooorm/is-word-character

Yes please! See How to Contribute to Open Source.

MIT © Titus Wormer