Created
May 3, 2018 04:25
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Higher Order Functionを使用して、Reducerを作成するサンプル
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| // handersには(state, action) => stateのreducerが渡される | |
| export function createReducer(initialState: Object, handlers: Object): Function { | |
| return function reducer(state: Object = initialState, action: Object): Object { | |
| if ({}.hasOwnProperty.call(handlers, action.type)) { | |
| // [ ]はaction.typeをKeyにしたreducerを返却 | |
| return handlers[action.type](state, action); | |
| } | |
| return state; | |
| }; | |
| } |
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