Redux example

Code tren https://stephengrider.github.io/JSPlaygrounds/

const reducer = (state = [], action) => {
 switch (action.type) {
    case 'split_string':
        return action.payload.split('')
    case 'add_character':
        return [...state, action.payload]
    default:
        return state;
 }
}


const store = Redux.createStore(reducer)
store.getState()


const action1 = {
 type: 'split_string',
  payload: 'abcd'
}
store.dispatch(action1)
store.getState()


const action2 = {
  type: 'add_character',
  payload: 'e'
}
store.dispatch(action2)
store.getState()

Output:

[]
{"type":"split_string","payload":"abcd"}
["a","b","c","d"]
{"type":"add_character","payload":"e"}
["a","b","c","d","e"]