Phone Number

Challenge Overview

Clean up user-entered phone numbers so that they can be sent SMS messages.

Visit the phone-number 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 @Steffan153 (⭐ 0) — View on Exercism
Solution 2 by @alterpatzer (⭐ 0) — View on Exercism
Solution 3 by @bentitmus (⭐ 0) — View on Exercism

Source: Exercism jq/phone-number

💡 View Solution

.phrase
| gsub("[+() .-]"; "")
| if test("[a-zA-Z]") then "letters not permitted" | halt_error
  elif test("\\D") then "punctuations not permitted" | halt_error
  elif test("^[^1].{10}$") then "11 digits must start with 1" | halt_error
  elif test("^.{0,9}$") then "must not be fewer than 10 digits" | halt_error 
  elif test(".{12}") then "must not be greater than 11 digits" | halt_error end
| sub("1(?=.{10})"; "")
| if test("^0") then "area code cannot start with zero" | halt_error
  elif test("^1") then "area code cannot start with one" | halt_error