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Contents

# Phone Number

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

The **North American Numbering Plan (NANP)** is a telephone numbering system used by many countries in North America like the United States, Canada or Bermuda. All NANP-countries share the same international country code: `1`.

NANP numbers are ten-digit numbers consisting of a three-digit Numbering Plan Area code, commonly known as *area code*, followed by a seven-digit local number. The first three digits of the local number represent the *exchange code*, followed by the unique four-digit number which is the *subscriber number*.


The format is usually represented as
```
(NXX)-NXX-XXXX
```
where `N` is any digit from 2 through 9 and `X` is any digit from 0 through 9.

Your task is to clean up differently formated telephone numbers by removing punctuation and the country code (1) if present.

For example, the inputs
- `+1 (613)-995-0253`
- `613-995-0253`
- `1 613 995 0253`
- `613.995.0253`

should all produce the output

`6139950253`

**Note:** As this exercise only deals with telephone numbers used in NANP-countries, only 1 is considered a valid country code.

## Resources

Remember to check out the Perl 6 [documentation](https://docs.perl6.org/) and
[resources](https://perl6.org/resources/) pages for information, tips, and
examples if you get stuck.

## Running the tests

There is a test script included with the exercise; a file with the extension
`.t`. You can run the test script for the exercise by executing the command
`prove . --exec=perl6` in the exercise directory. You can also add the `-v` flag
e.g. `prove . --exec=perl6 -v` to display all tests, including any optional
tests marked as 'TODO'.

## Source

Event Manager by JumpstartLab [http://tutorials.jumpstartlab.com/projects/eventmanager.html](http://tutorials.jumpstartlab.com/projects/eventmanager.html)

## Submitting Incomplete Solutions
It's possible to submit an incomplete solution so you can see how others have completed the exercise.

Version data entries

47 entries across 47 versions & 1 rubygems

Version Path
trackler-2.2.1.43 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.42 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.41 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.40 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.39 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.38 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.37 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.36 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.35 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.34 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.33 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.32 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.31 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.30 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.29 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.28 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.27 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.26 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.25 tracks/perl6/exercises/phone-number/README.md
trackler-2.2.1.24 tracks/perl6/exercises/phone-number/README.md