Operators

Store has multiple operators:

• Select<T> - select peace of the state by provided path. Returns new observable. this.store.select(['todos']).T parameter is optional and falls back to any but recommended and specifies type of sub-selected state.

• Initialize - initialize store with with new state. Returns observable holding initialized state. this.store.initialize(['todos', 'filter'], {newItem: false, usedItem: true})

• Reset - resets selected peace of state to its initial state: this.store.select(['todos']).reset()

• Map - transforms and returns state value.

• Snapshot - returns snaphot of the current state.

• toSignal - converts state to signal.

• Update - updates selected state.

this.store.update((state: Map<any, any>) => {
        state.set('itemToStore', 'changed value');
});

According to immutableJS there is second parameter that can be passed to update function wrapToWithMutations It is used when you want to do multiple updates before triggering mutation. https://stackoverflow.com/questions/28510753/when-should-i-use-withmutations-on-a-map-in-immutable-js