Where to put enums in my react application

if I understand correctly what you need.... in one of your file like newfile.js you have to import your enum file like this:

import { USER_TYPES, USER_STATUS,FOLLOWING_STATUS } from './enums'

note: './enums' is a path ... so here you have to put your path

and use as normal constant like this:

USER_TYPES.USER // is it  string  "user",
USER_TYPES.TRAINER // is it  string  "trainer",
USER_TYPES.ADMIN // is it  string  "admin",

USER_STATUS.REQUESTED //is it  string  "Requested",

FOLLOWING_STATUS.FOLLOWING //is it  number 1,

For a more semantic use, you could rename and move your file from config/enum.js to constants/users.js.

There you export each object your want, but with a shortened name: USER_TYPE -> TYPES, USER_STATUS -> STATUS.

So when you import your file you can do: import * as USERS from 'constants/users; and use it like this: USERS.STATUS.FOLLOW.