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A User Timing middleware for redux to create performance markers for dispatched actions
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const userTiming = () => (next) => (action) => { | |
if (performance.mark === undefined) return next(action); | |
performance.mark(`${action.type}_start`); | |
const result = next(action); | |
performance.mark(`${action.type}_end`); | |
performance.measure( | |
`${action.type}`, | |
`${action.type}_start`, | |
`${action.type}_end`, | |
); | |
return result; | |
} |
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