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devel
packages/tools-core/lib/string.js
58 строк
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Nacho Codoñer
add joinWithAnd utility for readable rspack deps formatting
17 июл 2025, 15:41
17 июл 2025, 15:41
b55ff6c
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/** * Capitalizes the first letter of the given string. * * @param {string} str – The input string. * @returns {string} – The string with its first character uppercased. */ export function capitalizeFirstLetter(str) { if (typeof str !== 'string' || str.length === 0) { return ''; } return str.charAt(0).toUpperCase() + str.slice(1); } /** * Shuffles the elements of the given array. * @param arr * @returns {*} */ function shuffleArray(arr) { for (let i = arr.length - 1; i > 0; --i) { const j = Math.floor(Math.random() * (i + 1)); [arr[i], arr[j]] = [arr[j], arr[i]]; } return arr; } /** * Shuffles the characters of the given string. * @param str * @returns {string} */ export function shuffleString(str) { return shuffleArray(str.split('')).join(''); } /** * Join an array of strings into a human-readable list. * * @param {string[]} items - The items to join. * @param {object} [opts] * @param {string} [opts.separator=', '] - Separator between items (except last). * @param {string} [opts.lastSeparator=' and '] - Text to insert before the last item. * @returns {string} */ export function joinWithAnd( items, { separator = ', ', lastSeparator = ' and ' } = {}, ) { const len = items.length; if (len === 0) return ''; if (len === 1) return items[0]; if (len === 2) return items[0] + lastSeparator + items[1]; return items .slice(0, -1) .reduce((acc, item, idx) => { return acc + (idx === 0 ? '' : separator) + item; }, '') + lastSeparator + items[len - 1]; }