interface String {
    xPadRight(totalWidth: number, paddingChar: string): string;
    xPadLeft(totalWidth: number, paddingChar: string): string;
    xSubstring(startIndex: number, length?: number): string;
    xRemove(startIndex: number, length: number): string;
    xContains(substr: string): boolean;
    xInsert(index: number, value: string): string;
    xToString(): string;
    xIsEmpty(): boolean;
    xIsWhiteSpace(): boolean;
    xStartsWith(str: string): boolean;
    xEndsWith(str: string): boolean;
    xIndexOf(subStr: string, startSearchFromIndex?: number): number;
    xLastIndexOf(subStr: string, startSearchFromIndex?: number): number;
    xReplaceOnce(toReplace: string, replacement: string): string;
    xReplaceAll(toReplace: string, replacement: string): string;
}
interface StringConstructor {
    xJoin(separator: string, parts: string[] | string): string;
    xIsNullOrWhiteSpace(value: string): boolean;
    xIsNullOrEmpty(value: string): boolean;
}
//# sourceMappingURL=String.types.d.ts.map