import * as i0 from "@angular/core";
export declare class Extensions {
    static ɵfac: i0.ɵɵFactoryDeclaration<Extensions, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<Extensions>;
}
export type StringFormat = 'camel' | 'snake' | 'capitalize-first' | 'capitalize' | 'label' | 'hyphenated';
declare global {
    export interface String {
        toFormat(format: StringFormat): string;
        ReplaceAll(stringToReplace: string | RegExp, replaceWith: string): string;
    }
}
export declare function strReplaceAll(input: string, strToReplace: string | RegExp, replaceWith: string): string;
export declare function toCapitalized(input: string): string;
export declare function toCamelCase(input: string): string;
export declare function toHyphenated(value: string): string;
export declare function isChar(input: string): boolean;
export declare function toLabelCase(str: string): string;
export declare function capitalizeFirst(input: string): string;