MCP Sandbox

/** * String manipulation utilities for MCP Sandbox demo */ /** * Convert string to title case * @param str The string to convert */ function toTitleCase(str = '') { return str.replace(/\w\S*/g, (txt) => txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase()); } /** * Generate a random string * @param length Length of the string to generate * @param includeNumbers Whether to include numbers */ function randomString(length = 10, includeNumbers = true) { const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'; const numbers = '0123456789'; const pool = includeNumbers ? chars + numbers : chars; let result = ''; for (let i = 0; i < length; i++) { result += pool.charAt(Math.floor(Math.random() * pool.length)); } return result; } /** * Count words in a string * @param text The text to analyze */ function wordCount(text = '') { return text .trim() .split(/\s+/) .filter((word) => word.length > 0).length; } /** * Reverse a string * @param str The string to reverse */ function reverse(str = '') { return str.split('').reverse().join(''); } /** * Check if string is palindrome * @param str The string to check * @param ignoreCase Whether to ignore case differences */ function isPalindrome(str = '', ignoreCase = true) { const normalized = ignoreCase ? str.toLowerCase() : str; const cleaned = normalized.replace(/[^a-zA-Z0-9]/g, ''); return cleaned === cleaned.split('').reverse().join(''); } /** * Capitalize first letter of each word * @param str The string to capitalize */ function capitalize(str = '') { return str.toLowerCase().replace(/(?:^|\s)\S/g, function (a) { return a.toUpperCase(); }); } module.exports = { toTitleCase, randomString, wordCount, reverse, isPalindrome, capitalize, };