hkt-toolbelt/string/is-uppercase-letter.js

Functional and composable type utilities

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.isUppercaseLetter = void 0;
/**
 * Given a string, return a boolean indicating whether the string is an
 * uppercase letter.
 *
 * @param {string} x - The string to check.
 *
 * @example
 * ```ts
 * import { String } from "hkt-toolbelt";
 *
 * const result = String.isUppercaseLetter('A')
 * //    ^? true
 * ```
 */
exports.isUppercaseLetter = ((x) => x.match(/^[A-Z]$/) !== null);