Other Exports
Other Exports
Redux Toolkit exports some of its internal utilities, and re-exports additional functions from other dependencies as well.
nanoid
nanoid
An inlined copy of nanoid/nonsecure
. Generates a non-cryptographically-secure random ID string. createAsyncThunk
uses this by default for request IDs. May also be useful for other cases as well.
miniSerializeError
miniSerializeError
The default error serialization function used by createAsyncThunk
, based on https://github.com/sindresorhus/serialize-error. If its argument is an object (such as an Error
instance), it returns a plain JS SerializedError
object that copies over any of the listed fields. Otherwise, it returns a stringified form of the value: { message: String(value) }
.
copyWithStructuralSharing
copyWithStructuralSharing
A utility that will recursively merge two similar objects together, preserving existing references if the values appear to be the same. This is used internally to help ensure that re-fetched data keeps using the same references unless the new data has actually changed, to avoid unnecessary re-renders. Otherwise, every re-fetch would likely cause the entire dataset to be replaced and all consuming components to always re-render.
If either of the inputs are not plain JS objects or arrays, the new value is returned.
Exports from Other Libraries
createNextState
createNextState
The default immutable update function from the immer
library, re-exported here as createNextState
(also commonly referred to as produce
)
current
current
The current
function from the immer
library, which takes a snapshot of the current state of a draft and finalizes it (but without freezing). Current is a great utility to print the current state during debugging, and the output of current
can also be safely leaked outside the producer.
original
original
The original
function from the immer
library, which returns the original object. This is particularly useful for referential equality check in reducers.
isDraft
isDraft
The isDraft
function from the immer
library, which checks to see if a given value is a Proxy-wrapped "draft" state.
combineReducers
combineReducers
Redux's combineReducers
, re-exported for convenience. While configureStore
calls this internally, you may wish to call it yourself to compose multiple levels of slice reducers.
compose
compose
Redux's compose
. It composes functions from right to left. This is a functional programming utility. You might want to use it to apply several store custom enhancers/ functions in a row.
bindActionCreators
bindActionCreators
Redux's bindActionCreators
. It wraps action creators with dispatch()
so that they dispatch immediately when called.
createStore
createStore
Redux's createStore
. You should not need to use this directly.
applyMiddleware
applyMiddleware
Redux's applyMiddleware
. You should not need to use this directly.
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