/**
 * Converts a given string into title case, where the first letter of each word is capitalized.
 * Words are assumed to be separated by spaces.
 *
 * @param str - The input string to be converted into title case.
 * @returns A new string where the first letter of each word is capitalized.
 *
 * @example
 * ```typescript
 * titleCase("title case this");
 * // Returns: "Title Case This"
 * ```
 */
export default function titleCase(str?: string): string;
//# sourceMappingURL=title-case.d.ts.map