Revert "refactor: add throw instead console.error"

This reverts commit 52d2cf9.

Author: dannielss

packages/toolkit/src/createSlice.ts

@@ -268,7 +268,7 @@ export function createSlice<
     process.env.NODE_ENV === 'development'
   ) {
     if(options.initialState === undefined) {
-      throw new Error('You must provide an `initialState` value that is not `undefined`.  You may have misspelled `initialState`')
+      console.error('initial state must be different of undefined')
     }
   }
 

packages/toolkit/src/tests/createSlice.test.ts

@@ -1,7 +1,19 @@
 import type { PayloadAction } from '@reduxjs/toolkit'
 import { createSlice, createAction } from '@reduxjs/toolkit'
+import {
+  mockConsole,
+  createConsole,
+  getLog,
+} from 'console-testing-library/pure'
 
 describe('createSlice', () => {
+  let restore: () => void
+
+  beforeEach(() => {
+    restore = mockConsole(createConsole())
+  })
+  
+  describe('when slice is undefined', () => {
     it('should throw an error', () => {
       expect(() =>
         // @ts-ignore
@@ -35,11 +47,13 @@ describe('createSlice', () => {
 
   describe('when initial state is undefined', () => {
     it('should throw an error', () => {
-      expect(() => createSlice({
+      createSlice({
         name: 'test',
         reducers: {},
         initialState: undefined,
-      })).toThrowError('You must provide an `initialState` value that is not `undefined`.  You may have misspelled `initialState`')
+      })
+
+      expect(getLog().log).toBe('initial state must be different of undefined')
     })
   })