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is-alphabetical
Advanced tools
Check if a character is alphabetical.
This is a function that checks if a given character is ASCII alphabetical:
matching [a-z]
, case insensitive.
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-alphabetical
In Deno with Skypack:
import {isAlphabetical} from 'https://cdn.skypack.dev/is-alphabetical@2?dts'
In browsers with Skypack:
<script type="module">
import {isAlphabetical} from 'https://cdn.skypack.dev/is-alphabetical@2?min'
</script>
import {isAlphabetical} from 'is-alphabetical'
isAlphabetical('a') // => true
isAlphabetical('B') // => true
isAlphabetical('0') // => false
isAlphabetical('💩') // => false
This package exports the following identifier: isAlphabetical
.
There is no default export.
isAlphabetical(character|code)
Check whether the given character code (number
), or the character code at the
first position (string
), is alphabetical.
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-decimal
wooorm/is-hexadecimal
wooorm/is-alphanumerical
wooorm/is-whitespace-character
wooorm/is-word-character
Yes please! See How to Contribute to Open Source.
FAQs
Check if a character is alphabetical
The npm package is-alphabetical receives a total of 8,647,443 weekly downloads. As such, is-alphabetical popularity was classified as popular.
We found that is-alphabetical demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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