export declare class StringUtils {
    private static readonly NUMBER_REG;
    private static readonly URL_REG;
    static startsWith(value: string, sub: string): boolean;
    static endsWith(value: string, sub: string): boolean;
    static tryTrim(value: string): string;
    static isUrl(path: string): boolean;
    static isNumeric(value: string): boolean;
    static capitalize(value: string): string;
    static startWithChar(value: string, ch: string): boolean;
    static contains(value: string, search: string): boolean;
    static equalsIgnoreCase(lhs: string, rhs: string): boolean;
}