/**
 * Force first letter uppercase on a word
 * @param string string
 * @returns
 */
export declare const makeFirstLetterUppercase: (string: string) => string;
/**
 * Ensure all characters in the string are lowercase
 * @param str string to be encoded
 * @returns
 */
export declare const ensureAllLowerCase: (str?: any) => any;
/**
 * Make string camelcase
 * all words start with uppercase except the first
 * @param str string to camelcaseify
 * @returns
 */
export declare const camelcaseify: (str: string) => string;
export declare class StringUtils {
    static camelcaseify: (str: string) => string;
    static ensureAllLowerCase: (str?: any) => any;
    static makeFirstLetterUppercase: (string: string) => string;
    /**
     * Split and add a space before each capital letter
     * making camelcase words look like this:
     * "camelCase" => "Camel Case" so it is easier to read
     * @param str string to prettify
     */
    static prettify: (str: string) => string;
    /**
     * Remove special characters from string
     * make first letter uppercase
     * @param str string to be cleaned
     */
    static clean: (str: string) => string;
    static makeFirstLetterLowercase: (str: string) => string;
    /**
     * Ensure that the string is in camelcase format and has no spaces
     * @param str string to ensure valid id format
     * @returns string in camelcase format and no spaces
     */
    static ensureValidIdFormat: (str: string) => string | undefined;
    /**
     * Remove characters from string and make it look legible
     * less "code" like
     */
    static decodify: (str: string) => string;
}