Number.zeroPadLeft

zeroPadLeft($numDigits) -> string

Append zeros to the left of a number to reach $numDigits in length.

The number will be automatically converted to an integer.

Returns a string.

$num = 123
$num.zeroPadLeft(5)  //= '00123'
$num.zeroPadLeft(1)  //= '123'

$num = 123.45
$num.zeroPadLeft(5)  //= '00123'