Export createChainableTypeChecker?

[d07RiV]

Is there any reason why this function isn't exported (other than the ReactPropTypesSecret bit)? Every library or project that implements custom type checkers needs to write their own copy of it.

[ljharb]

fwiw, airbnb-prop-types doesn't; we use a different, more explicit/less metaprogrammy approach.

[Asday]

I'm envisioning writing stuff like ofAtLeastSize that checks array length, and withProps that checks that props exist on an element, so I could write something like:

static propTypes = {
  children: PropTypes
    .array
    .ofAtLeastSize(1)
    .arrayOf(withProps({ name: PropTypes.string.isRequired }))
    .isRequired,
}

I'm aware I could write all of the above into one gross custom validator, but the idea of composable chainable validation calls to me with a very pretty voice.

Am I trying to get too clever with prop-types?

[ljharb]

@Asday airbnb-prop-types already has withShape that allows for it, eg, withShape(PropTypes.array, { length: range(1, Infinity) }).