markSimpleObject()

markSimpleObject() is a mark function that marks all objects as immutable.

Usage​

If you want to mark all objects as immutable(raw object, plain object without prototype chains or cross-iframe objects with same domain), you can use markSimpleObject().

const baseState ={
 foo:{
 bar:'str',
},
 simpleObject: Object.create(null),
};

const state =create(
 baseState,
(draft)=>{
 draft.foo.bar ='new str';
 draft.simpleObject.a ='a';
},
{
 mark: markSimpleObject,
}
);

expect(state.simpleObject).not.toBe(baseState.simpleObject);