Function typecheck

src/utils/checkTypes.js:4–12

(types, name, obj)

import isPlainObject from './isPlainObject'

function typecheck(types, name, obj) {
  invariant(
    Array.isArray(types)
      ? types.some(t => typeof obj === t)
      : typeof obj === types,
    `${name} must be ${Array.isArray(types) ? 'one of' : 'a'} ${types}. Instead received a %s.`,
    typeof obj
  )
}

const checks = {
  buildRequest(fn) {