LanguageValues and typesStandard typesTax and identity numbers
UsEin
On this page
A US Employer Identification Number, for a business: nine digits.
Use it to name a US business with the IRS. For a person, use UsSsn.
Shape
One value, held as text in one set form, with no parts: 987654321.
Example
UsEin("123456789")UsEin(raw) checks the text, and text that isn't one breaks the format rule.
text.parse(raw, as: UsEin) reads one from text that comes from outside. Text that isn't one at all fails malformed, such as 12-3456789, 12345678 or 1234567890.
Good to know
- Write it with no dash.
text.formatadds it:12-3456789. ==tells you whether two are the same.<andlist.sort_bydon't take it.
In JSON
A string, in a request, a response or json.write:
"123456789""987654321"
Details
Text form, storage, how it is shown, and operations
UsEin is in the group Tax and identity numbers, 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: 123456789 and 987654321.
How it is stored
It is stored in one column named for the field, of type text. 987654321 is stored as '987654321'.
How it is shown to people
text.format(value, locale:) shows it to people in their locale.
With locale: Locale.en_gb:
| Value | Shown |
|---|---|
123456789 |
12-3456789 |
987654321 |
98-7654321 |
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-us-ein.md.Built from Jadpo main at aee2e8f.