Function ordinal

ordinal(number: number): string
Get a non-negative integer's ordinal suffix form (e.g. 1 -> '1st').
Parameters
- number: number
  Non-negative integer to convert.
Returns string
The number followed by its ordinal suffix, or the shared invalid-input message for anything else.
Example
```
ordinal(1); // '1st'
ordinal(11); // '11th'
ordinal(21); // '21st'
```
- Defined in numbers/ordinal.ts:10