String.prototype.padStart()

The padStart() method of String values pads this string with a given string (repeated and/or truncated, if needed) so that the resulting string has a given length. The padding is applied from the start of this string.

Return value: A String of the specified targetLength with padString applied at the start.

Parameters: targetLength The length of the resulting string once the current str has been padded. If the value is less than or equal to str.length, then str is returned as-is. padString The string to pad the current str with. If padString is too long to stay within targetLength, it will be truncated from the end. The default value is the space character (U+0020).

Syntax example: padStart(targetLength)