add left padding to a vector of values

pad_left(.x, .n, padding_char = "0")

Arguments

.x	vector
.n	total number of characters result should have
padding_char	padding char to use, defaults to 0

pad_left(1, 3)
#> [1] "001"
pad_left(c(1, 10, 100), 4)
#> [1] "0001" "0010" "0100"