/**
 * 转换为驼峰格式
 * @param str
 */
export const toCamelCase = (str: string) => {
    const s =
        str &&
        // @ts-ignore
        str
            .match(
                /[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g
            )
            .map(x => x.slice(0, 1).toUpperCase() + x.slice(1).toLowerCase())
            .join("");
    return s.slice(0, 1).toLowerCase() + s.slice(1);
};