@gocodingnow/rn-native-base-boilerplate/template/libs/react-native-size-matters/deep-map.ts

React Native + Native Base Boilerplate

const deepMap = (obj: any, fn: any): any => {
  const deepMapper = (val: any) => (isObject(val) ? deepMap(val, fn) : fn(val))
  if (Array.isArray(obj)) {
    return obj.map(deepMapper)
  }
  if (isObject(obj)) {
    return mapObject(obj, deepMapper)
  }
  return obj
}

const mapObject = (obj: any, fn: any): any =>
  Object.keys(obj).reduce((res: any, key: string) => {
    res[key] = fn(obj[key])
    return res
  }, {})

const isObject = (myVar: any): boolean => myVar && typeof myVar === 'object'

export default deepMap