1interface String { 2 /** 3 * Pads the current string with a given string (possibly repeated) so that the resulting string reaches a given length. 4 * The padding is applied from the start (left) of the current string. 5 * 6 * @param maxLength The length of the resulting string once the current string has been padded. 7 * If this parameter is smaller than the current string's length, the current string will be returned as it is. 8 * 9 * @param fillString The string to pad the current string with. 10 * If this string is too long, it will be truncated and the left-most part will be applied. 11 * The default value for this parameter is " " (U+0020). 12 */ 13 padStart(maxLength: number, fillString?: string): string; 14 15 /** 16 * Pads the current string with a given string (possibly repeated) so that the resulting string reaches a given length. 17 * The padding is applied from the end (right) of the current string. 18 * 19 * @param maxLength The length of the resulting string once the current string has been padded. 20 * If this parameter is smaller than the current string's length, the current string will be returned as it is. 21 * 22 * @param fillString The string to pad the current string with. 23 * If this string is too long, it will be truncated and the left-most part will be applied. 24 * The default value for this parameter is " " (U+0020). 25 */ 26 padEnd(maxLength: number, fillString?: string): string; 27} 28