Syntax
zfill(string)
Description
The zfill() function adds zeros (0) at the beginning of the string, until it reaches the specified length.
If the value of the len parameter is less than the length of the string, no filling is done.
Example
include("string")
a = "hello"
b = "this is more than 10 characters long"
c = "10.000"
println(zfill(a,10))
println(zfill(b,10))
println(zfill(c,10))