Karol Majewski karol-majewski
karol-majewski
/ redux-performance-mark.ts
Last active
July 6, 2018 10:51
— forked from clarkbw/redux-performance-mark.js
A User Timing middleware for Redux to create performance markers for dispatched actions. Remade with TypeScript (Redux v.4).
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| import { AnyAction, Middleware } from 'redux'; | |
| export const userTimingMiddleware: Middleware = () => { | |
| return next => { | |
| return <A extends AnyAction>(action: A): A => { | |
| if (performance.mark === undefined) { | |
| return next(action); | |
| } | |
| performance.mark(`${action.type}_start`); |