$(padStart)
$(padStart [length] [char] [text])
Pads the start of the text with char until it is length characters long. The pad character may be quoted ('0') — use ' ' for a space.
Examples
$(padStart 5 0 42)
Will display "00042"
$(padStart 3 0 {{deaths}})
Will display a death counter with leading zeros, e.g. "007"