Note: the`assign` method only exists on object data type

When passing a callback to to the`set` function, the type of callback you need to pass depends on the state datatype.

The`set` function can accept a value or a callback function

The types fully reflect which type of callback is required and therefore your IDE guide you.

Set value example:`counterStore.set(5)`

Set callback function example:`counterStore.set(()=>{...})`

The type of callback function changes depending on the state datatype.

**Objects/Arrays**: directly modify the draft, don't return anything

**Primitives**: get previous value, return new value

(The types fully reflect which type of callback is required and therefore your IDE will guide you.)

Calling`.set` on an object/array uses immer under the hook, allowing you to mutate a draft copy of the state while maininaining immutability.

const userStore=store({ name:'John', age:20 });

userStore.set((draft)=> {

draft.name='Jane';

draft.age=30;

});

const todosStore=store([

{ id:1, text:'write docs' },

{ id:2, text:'sleep' },

draft.push('another task');

});

todosStore.set(draft=>{

cosntfirstTodo=todosStore[0];

firstTodo.text="new text"

})

todosStore.set((draft)=>{

const firstTodo=draft[0];

firstTodo.text='new text';

});

Calling`set` on other data types behaves slightly differently.

You are given the previous value of the property and you must return the new value from the callback.

userStore.age.set((prevAge)=>prevAge+1);

- objects/arrays:

- you can directly modify the draft and you dont need to return anything

- primative values:

- gets the previous value of the property, you must return the new value from the callback

-calling`.set(value)` on arrays/object behaves the same as othervalues. The difference only arises when passing a callback to the`set` function.

-Non-draftablevalues (e.g., MediaRecorder or window) will be considered as primitive values

- Since`@davstack/store 1.3.0` root level array stores are fully supported

- You no longer need to consider the limitations of immer as non-draftable values eg MediaRecorder or window will default to regular zustand setters.