Out of the box types

As discussed in the previous section, we can compose simpler types into more complex ones. So you don't have to create simple types like Integer for every code base, Unwrap gives you some types out of the box.

If you want us to add more please let us know in our GitHub issues page.

Numbers

import { Brand } from '@unnullable/unwrap'

Brand.Number.Integer // Integer type
Brand.Number.Float // Float type
Brand.Number.Positive // Positive number
Brand.Number.Negative // Negative number
Brand.Number.NonNegative // Number greater or equal to zero
Brand.Number.Digit // Number between 0 and 10
Brand.Number.Between<min, max> // Number between min and max

Strings

Brand.String.NotEmpty // String with at least one non white space
Brand.String.Between<min, max> // String with length between min and max

Nullable

Brand.Nullable.NotNullable // Not equal to null or undefined
Brand.Nullable.NotNull // Not equal to null
Brand.Nullable.NotUndefined // Not equal to undefined