store.has

store.has is a method for checking if a state is available in a store. If you try to get a state from a store with store.getState(key) and it’s not available, state-pool will throw an error, so we need a good way to handle this, i.e check if a state is available first, then access it, This is where store.has swoops in.

Here is an example of store.has in action

// We want to access user state in a store but first we have to check if it's available
if(store.has("user")) {
    const user = store.getState("user");
}
else {
    // There is not user state in a store
}