declare global {
    interface String {
        camelCase(input: string): string;
    }
}
export declare function safeReplace(input: string, matchWholeWord: boolean, find: string, replacement?: string): string;
export declare function containsWholeWord(input: string, find: string, matchWholeWord?: boolean): boolean;
export declare function getLineComment(input: string): string;
export declare function stripHtmlTags(input: string, ...tagNames: string[]): string;
export declare function replaceWithHtmlKeyCode(input: string): string;
export declare function replaceHtmlKeyCode(input: string): string;
export declare function replaceString(input: string): string;
export declare function isValid(input: string): boolean;