Series

Challenge Overview

Given a string of digits, output all the contiguous substrings of length `n` in that string.

Visit the series exercise on Exercism to read the full instructions and download the exercise files.

Community Solutions

View Community Solutions

The following are the top 3 community solutions by stars:

Solution 1 by @menketechnologies (⭐ 2) — View on Exercism
Solution 2 by @rado-h (⭐ 0) — View on Exercism
Solution 3 by @erpcf (⭐ 0) — View on Exercism

Source: Exercism gleam/series

💡 View Solution

pub fn slices(s: String, len: Int) -> Result(List(String), Error) {
  let input_length = string.length(s)
  case len {
      _size if input_length == 0 -> Error(EmptySeries)
      len if len > input_length -> Error(SliceLengthTooLarge)
      len if len < 0 -> Error(SliceLengthNegative)
      0 -> Error(SliceLengthZero)
      len -> Ok(collect_slices(s, len))
    }
}