Created
February 20, 2019 19:42
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Experiment React Stuff
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| import React, { Component } from 'react'; | |
| import { Experiment } from './experiment/Experiment'; | |
| import { Case } from './experiment/Case'; | |
| class App extends Component { | |
| render() { | |
| return ( | |
| <div className="App"> | |
| <Experiment> | |
| <Case when={(experimentMetadata) => experimentMetadata.foo === 'bar'}> | |
| <button>swag button</button> | |
| </Case> | |
| <Case when={(experimentMetadata) => experimentMetadata.foo === 'baz'}> | |
| <button>super swag button</button> | |
| </Case> | |
| <Case when={(experimentMetadata) => experimentMetadata.foo === 'bat'}> | |
| <button>the swaggiest</button> | |
| </Case> | |
| </Experiment> | |
| </div> | |
| ); | |
| } | |
| } | |
| export default App; |
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| import ReactDOM from 'react-dom'; | |
| import React, { useEffect, useRef } from 'react'; | |
| import { useExperiment } from './Experiment'; | |
| const Case = ({ when, children }: any) => { | |
| const experiment = useExperiment(); | |
| const { data } = experiment; | |
| const shouldShow = when(data); | |
| if (!shouldShow) { | |
| return null; | |
| } | |
| return ( | |
| <React.Fragment> | |
| {children} | |
| </React.Fragment> | |
| ) as any; | |
| }; | |
| export { Case }; |
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| import * as React from 'react'; | |
| const uid = () => | |
| `${Math.random() | |
| .toString(32) | |
| .substr(2, 8)}`; | |
| const Context = React.createContext<ExperimentContext>({ | |
| cases: [], | |
| data: {}, | |
| experimentId: uid(), | |
| registerCase: () => {}, | |
| unregisterCase: () => {}, | |
| }); | |
| export interface ExperimentContext { | |
| cases: any; | |
| data: any; | |
| registerCase: any; | |
| unregisterCase: any; | |
| experimentId: string; | |
| } | |
| export interface NodeManagerProps { | |
| children: React.ReactNode; | |
| } | |
| export const Experiment: React.FC<NodeManagerProps> = ({ children }) => { | |
| const [cases, setCases] = React.useState<any>({}); | |
| const [data, setData] = React.useState<any>({ foo: 'bar' }); | |
| const experimentId = React.useRef(uid()); | |
| const registerCase = React.useCallback<ExperimentContext['registerCase']>((component,key = uid()) => { | |
| return setCases(n => ({ ...n, [key]: component })); | |
| }, []); | |
| const unregisterCase = React.useCallback<ExperimentContext['unregisterCase']>( | |
| key => { | |
| setCases(n => { | |
| const { [key]: omitted, ...rest } = n; | |
| return rest; | |
| }); | |
| }, | |
| [] | |
| ); | |
| const context = React.useMemo(() => { | |
| return { | |
| experimentId: experimentId.current, | |
| cases, | |
| data, | |
| registerCase, | |
| unregisterCase, | |
| }; | |
| }, [cases, experimentId, data, unregisterCase, experimentId]); | |
| return <Context.Provider value={context}>{children}</Context.Provider>; | |
| }; | |
| export function useExperiment() { | |
| const context = React.useContext(Context); | |
| return context; | |
| } |
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