Jadpo is experimental and not ready for production. These docs follow the compiler's main branch as of 5 Nov 2026. What's built · Install 0.3.0
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ReferencePeople and contact

LanguageValues and typesStandard typesPeople and contact

PhoneExtension

On this page

An internal extension dialled after a phone number: up to 20 digits.

Use it beside a PhoneNumber for an office line's extension. The main number goes in the PhoneNumber.

Shape

One value, held as text in one set form, with no parts: 2047.

Example

example
PhoneExtension("2047")

PhoneExtension(raw) checks the text, and text that isn't one breaks the format rule.

text.parse(raw, as: PhoneExtension) reads one from text that comes from outside. Text that isn't one at all fails malformed, such as x2047, 20 47 or 123456789012345678901.

Good to know

  • It holds digits only: leave out any x or "ext".
  • == tells you whether two are the same. < and list.sort_by don't take it.
  • A field that holds one counts as personal data (contact), so you don't mark it yourself.

In JSON

A string, in a request, a response or json.write:

json
"1""2047"

Details

Text form, storage, how it is shown, and operations

PhoneExtension is in the group People and contact, and has been in Jadpo since 0.1.0.

Text form

text.from writes one standard text form, the same form text.parse reads back: 1 and 2047.

How it is stored

It is stored in one column named for the field, of type text. 2047 is stored as '2047'.

How it is shown to people

text.format(value, locale:) shows it to people in their locale.

With locale: Locale.en_gb:

Value Shown
1 1
2047 2047

Operations

It also takes text.parse, text.from, text.format, json.read, json.write and ==. How every standard type behaves says how they work.

Markdown for agents: /docs/types/type-phone-extension.md.Built from Jadpo main at aee2e8f.