/*!
 * @author electricessence / https://github.com/electricessence/
 * Licensing: MIT
 */
export declare const EMPTY = "";
/**
 * Returns a numerical (integer) hash code of the string.  Can be used for identifying inequality of contents, but two different strings in rare cases will have the same hash code.
 * @param source
 * @returns {number}
 */
export declare function getHashCode(source: string): number;
/**
 * Repeats a sequence of characters.
 * @param source
 * @param count
 */
export declare function repeat(source: string, count: number): string;
/**
 * Repeats a character code to a string sequence.
 * @param char
 * @param count
 */
export declare function fromChars(char: number, count: number): string;
/**
 * Converts a sequence of character codes to a string.
 * @param chars
 */
export declare function fromChars(chars: number[]): string;
/**
 * Escapes a RegExp sequence.
 * @param source
 * @returns {string}
 */
export declare function escapeRegExp(source: string): string;
/**
 * Can trim any character or set of characters from the ends of a string.
 * Uses a Regex escapement to replace them with empty.
 * @param source
 * @param chars A string or array of characters desired to be trimmed.
 * @param ignoreCase
 * @returns {string}
 */
export declare function trim(source: string, chars?: string | string[], ignoreCase?: boolean): string;
/**
 * This takes a string and replaces '{string}' with the respected parameter.
 * Also allows for passing an array in order to use '{n}' notation.
 * Not limited to an array's indexes.  For example, {length} is allowed.
 * Based upon Crockford's supplant function.
 * @param source
 * @param params
 * @returns {string}
 */
export declare function supplant(source: string, params: {
    [key: string]: any;
} | any[]): string;
/**
 * This takes a string and replaces '{0}' with the first parameter, '{1} the second, and so on..
 * Not limited to indexes indexes.  For example, {length} is allowed as the number of params.
 * @param source
 * @param args
 * @returns {string}
 */
export declare function format(source: string, ...args: any[]): string;
/**
 * Returns true if the pattern matches the beginning of the source.
 * @param source
 * @param pattern
 * @returns {boolean}
 */
export declare function startsWith(source: string, pattern: string): boolean;
/**
 * Returns true if the pattern matches the end of the source.
 * @param source
 * @param pattern
 * @returns {boolean}
 */
export declare function endsWith(source: string, pattern: string): boolean;