15 lines
369 B
JavaScript
15 lines
369 B
JavaScript
'use strict'
|
|
|
|
module.exports = alphabetical
|
|
|
|
// Check if the given character code, or the character code at the first
|
|
// character, is alphabetical.
|
|
function alphabetical(character) {
|
|
var code = typeof character === 'string' ? character.charCodeAt(0) : character
|
|
|
|
return (
|
|
(code >= 97 && code <= 122) /* a-z */ ||
|
|
(code >= 65 && code <= 90) /* A-Z */
|
|
)
|
|
}
|