Files
bigcapital/client/src/store/enhancers/monitorReducer.js
2020-02-17 00:15:07 +02:00

17 lines
519 B
JavaScript

const round = number => Math.round(number * 100) / 100
const monitorReducerEnhancer = createStore => (
reducer,
initialState,
enhancer
) => {
const monitoredReducer = (state, action) => {
const start = performance.now()
const newState = reducer(state, action)
const end = performance.now()
const diff = round(end - start)
console.log('reducer process time:', diff)
return newState
}
return createStore(monitoredReducer, initialState, enhancer)
}
export default monitorReducerEnhancer