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kostasx/redux-light-example.js

Forked from bloodyowl/redux-light-example.js
Created January 11, 2023 08:32
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  1. @bloodyowl bloodyowl created this gist Feb 29, 2016.
    15 changes: 15 additions & 0 deletions redux-light-example.js
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,15 @@
    const store = createStore((state = { counter: 0 }, action) => {
    switch(action.type) {
    case "INCREMENT":
    return { counter: state.counter + 1 }
    case "DECREMENT":
    return { counter: state.counter - 1 }
    default:
    return state
    }
    })

    store.dispatch({ type: "INCREMENT" })
    store.dispatch({ type: "INCREMENT" })

    console.log(store.getState())
    14 changes: 14 additions & 0 deletions redux-light.js
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    Original file line number Diff line number Diff line change
    @@ -0,0 +1,14 @@
    const createStore = (reducer, state = reducer(undefined, { type: "@@INIT" })) => {
    const subscribers = new Set()
    return {
    dispatch: (action) => {
    state = reducer(state, action)
    subscribers.forEach(func => func())
    },
    subscribe: (func) => {
    subscribers.add(func)
    return () => subscribers.delete(func)
    },
    getState: () => state
    }
    }