Redux-Leaves

concat(arrayOrString)

create.concat create(actionType).concat Appropriate leaf state: array | string

Returns an (action) object that the reduxLeaves reducer uses to update the leaf's state by concatening it with arrayOrString.

Parameters

  • arrayOrString (array | string): the array to concatenate

Returns

action (object): an object to dispatch to the store

Example

import { createStore } from 'redux'
import reduxLeaves from 'reduxLeaves'

const initialState = {
  arr: [1, 2, 3],
  str: 'foo'
}

const [reducer, actions] = reduxLeaves(initialState)
const store = createStore(reducer)

Concatenating an array

const concatToArr = actions.arr.create.concat
store.dispatch(concatToArr(['a', 'b', 'c']))
console.log(store.getState().arr) // [1, 2, 3, 'a', 'b', 'c']

Concatenating a string

const concatToStr = actions.str.create.concat
store.dispatch(concatToStr('bar'))
console.log(store.getState().str) // 'foobar'
← set