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