Nested Objects

The composition ability for combining validators together on props and objects opens up complex possibilities. Another great example is nested objects.

import validate, {
    objectProps, required, length, range, every
} from 'strickland';

const personValidator = objectProps({
    name: every([required(), length(5, 40)]),
    address: objectProps({
        street: every([required(), objectProps({
            number: every([required(), range(1, 99999)]),
            name: every([required(), length(2, 40)])
        })]),
        city: required(),
        state: every([required(), length(2, 2)])
    })
});

const person = {
    name: 'Marty McFly',
    address: {
        street: {
            number: 9303,
            name: 'Lyon Drive'
        },
        city: 'Hill Valley',
        state: 'CA'
    }
};

const result = validate(personValidator, person);

Objects can be nested without any limits on depth. And any type of validator can be used anywhere in the tree.