Strips all whitespaces from the beginning of the string. Without the second parameter, this will trim these characters:

  • " " (ASCII 32 (0x20)), an ordinary space
  • "\t" (ASCII 9 (0x09)), a tab
  • "\n" (ASCII 10 (0x0A)), a new line (line feed)
  • "\r" (ASCII 13 (0x0D)), a carriage return
  • "\0" (ASCII 0 (0x00)), the NUL-byte
  • "\x0B" (ASCII 11 (0x0B)), a vertical tab
  • Parameters

    • str: null | string
    • chars: string = '\\s'

    Returns null | string