TypeScript

Reduxでstateが undefinedに？どんな現象？

出典: Typescript×ReduxでStateがundefinedに？確認すること！ — Reduxでstateが undefinedに？どんな現象？

Reduxでstateが undefinedに？どんな現象？ (typescript)#724b87f56936

	render() {
		return (
			<div>
				{/*<p>CurrentCount:{this.props.value.num}</p>*/}
				{console.log(this.props)}
				<button type={"button"} onClick={() => this.props.actions.Increment()}>Increment</button>
				<button type={"button"} onClick={() => this.props.actions.Decrement()}>Increment</button>
			</div>
		)
	}

▸ 実行ボタンで結果を表示

id: #724b87f56936
lines: 10
extracted: 2026-06-10
captured: 2026-06-04

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技術記事Gitデータ有React

Typescript×ReduxでStateがundefinedに？確認すること！

6年前12 min

同じ記事から

11 件

TypeScript

import {Action} from 'redux'

export enum	ActionNames{
	Increment = 'inc',

未収録

Action

#f6e047b97c21

TypeScript

import {ActionNames, ActionType} from "../Actions/CounterAction";


export interface IState {

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Reducer

#c6a3f4c3b4fc

TypeScript

import {combineReducers,createStore,Action} from 'redux'
import CounterReducer, {IState} from "../Reducers/CounterReducer";
import {ActionType} from "../Actions/CounterAction";

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Store

#3016f3544502

TypeScript

import {ReduxAction, ReduxState} from "../Store/store";
import {DecrementAmount, IncrementAmount} from "../Actions/CounterAction";
import {connect} from "react-redux";
import {Dispatch} from "react";

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Container

#adc8bd5d5619

TypeScript

import React from "react";
import {IState} from "../Reducers/CounterReducer";
import {ActionDispather} from "./Container";

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Component

#cef49ac152ba

TypeScript

import React from 'react';
import ReactDOM from 'react-dom';
import * as serviceWorker from './serviceWorker';
import {Provider} from "react-redux";

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Index

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