質問編集履歴
3
進捗分更新
test
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Reduxにて、フォームに入力した内容が
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Reduxにて、フォームに入力した内容が登録されるようにしたい
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フォームにて、入力した内容がlogで出力されるようにしたいが、
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表示画面にて入力を行うとエラーが出てしまいます。
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エラー内容
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```
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App.js:25 Uncaught TypeError: _actions__WEBPACK_IMPORTED_MODULE_1__.updateFormId is not a function
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at Object.updateFormId (App.js:25)
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at Object.onChangeId (App.js:21)
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at
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at onChange (Content.js:36)
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・・・
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```
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```
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```
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```
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Uncaught TypeError: this.props.updateFormName is not a function
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at Object.onChangeName (App.js:25)
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at onChange (Content.js:43)
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```
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```
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Content.js:57 Uncaught TypeError: Cannot read property 'id' of undefined
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at Content (Content.js:57)
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```
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・
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・updateFormIdとupdateFormNameが関数ではないと言われていますが、具体的にどう直せば良いのか分からず、進めないでいます。
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React、JavaScript学習初めて1ヶ月の初心者です。
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サンプルコードを真似しつつコードを書いてます。
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改善点、問題解決のためのアプローチの方法、アドバイスいただけたらありがたいです。お願いします。
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また、他に必要な情報があればあ追記します。
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'use strict';
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import React from 'react';
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import React,{ useState } from 'react';
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import { createStore } from "redux";
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export default function Content(props) {
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const ids = props.formItem.id;
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const names = props.formItem.name;
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console.log(props.formItem.id["list"])
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// const ids = props.formItem.id;
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console.log(ids)
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return (
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<>
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<p>content</p>
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<Form
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onChangeId={props.onChangeId}
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onChangeName={props.onChangeName}
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/>
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<button type="button"
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className="btn btn-outline-success"
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onClick={() => props.onSaveItem()} >
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SAVE
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</button>
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</>
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);
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}
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function Form(props) {
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return (
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<div className="form-group">
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<label className="pt-2">ID</label>
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<input id="1"
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type="text"
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className="form-control"
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value={props.id}
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onChange={(e) => props.onChangeId(e)}
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/>
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<label className="pt-2">Name</label>
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<input id="2"
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type="text"
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className="form-control"
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value={props.name}
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onChange={(e) => props.onChangeName(e)}
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/>
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</div>
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)
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}
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```
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```App.js
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import React, { Component } from 'react';
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import Header from './components/Header';
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import Footer from './components/Footer';
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import Top from './components/Top';
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import Content from './components/Content';
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class App extends Component {
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constructor(props) {
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super(props);
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}
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componentDidMount() {
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const id = 1;
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const name = "name1";
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this.props.didMnt(id,name);
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}
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// formId
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onChangeId = (e) => {
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this.props.updateFormId(e.target.id);
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}
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// forName
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onChangeName = (e) => {
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this.props.updateFormName(e.target.name);
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}
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// clickSaveButton
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onSaveItem = () => {
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console.log("SAVE_ID: ",this.props.conditions.id);
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console.log("SAVE_NAME: ",this.props.conditions.name);
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}
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render() {
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console.log(this.props);
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const formItem = this.props
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// formEvent
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const contentHandler = ({onChangeId, onChangeName, onSaveItem}) => ({ onChangeId, onChangeName, onSaveItem })
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console.log('App.render:', this.props);
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return (
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<div className="content">
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<Header />
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sample site
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{/* <div className="row">
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<div className="col-5">
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<p>test</p>
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</div>
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</div> */}
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<Top />
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<br />
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<br />
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<br />
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<div className="container">
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<Content formItem={formItem} {...contentHandler(this)} />
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</div>
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<br />
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<br />
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<br />
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<Footer />
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</div>
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}
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}
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export default App;
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```
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```containers/App.js
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import { connect } from 'react-redux';
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import * as actions from '../actions';
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import App from '../App';
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const mapStateToProps = state => {
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}
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const mapDispatchToProps = dispatch => {
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return {
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didMnt: (id,name) => dispatch(actions.didMnt(id,name)),
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updateFormId: (id) => dispatch(actions.updateFormId(id)),
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}
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}
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export default connect(mapStateToProps, mapDispatchToProps)(App)
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```
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```createStore.js
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import { createStore as reduxCreateStore, combineReducers } from "redux";
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export default function createStore() {
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const store = reduxCreateStore(
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combineReducers({
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id,
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name
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componentDidMount() {
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render() {
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const data1 = "AAAA";
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const topData = ({data1}) => ({data1})
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const contentData = ({data2}) => ({data2})
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const ja = "*****Japan!";
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const formItem = this.props
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// formEvent
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const contentHandler = ({onChangeId, onChangeName}) => ({onChangeId, onChangeName})
|
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return (
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<div className="content">
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<Header />
|
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sample site
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<div className="row">
|
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<div className="col-3">
|
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<h1>{ja}</h1>
|
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|
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|
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|
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</div>
|
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|
-
|
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|
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<div className="col-5">
|
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|
-
|
337
|
-
<p>test</p>
|
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|
-
|
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|
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</div>
|
340
|
-
|
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|
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</div>
|
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|
-
|
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|
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<Top data1={data1} />
|
344
|
-
|
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|
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<br />
|
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|
-
|
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|
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<br />
|
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|
-
|
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|
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<br />
|
350
|
-
|
351
|
-
<div className="container">
|
352
|
-
|
353
|
-
<Content formItem={formItem} {...contentHandler(this)}/>
|
354
|
-
|
355
|
-
|
356
|
-
|
357
|
-
</div>
|
358
|
-
|
359
|
-
<br />
|
360
|
-
|
361
|
-
<br />
|
362
|
-
|
363
|
-
<br />
|
364
|
-
|
365
|
-
</div>
|
366
|
-
|
367
|
-
);
|
368
|
-
|
369
|
-
}
|
370
|
-
|
371
|
-
}
|
372
|
-
|
373
|
-
export default App;
|
374
|
-
|
375
|
-
|
376
|
-
|
377
|
-
```
|
345
|
+
return store;
|
346
|
+
|
347
|
+
}
|
348
|
+
|
349
|
+
```
|
350
|
+
|
351
|
+
```actions.js
|
352
|
+
|
353
|
+
export const didMnt = (id, name) => {
|
354
|
+
|
355
|
+
return {
|
356
|
+
|
357
|
+
type: 'DID_MOUNT',
|
358
|
+
|
359
|
+
payload: { id, name }
|
360
|
+
|
361
|
+
};
|
362
|
+
|
363
|
+
}
|
364
|
+
|
365
|
+
```
|
366
|
+
|
367
|
+
|
368
|
+
|
369
|
+
```reducers.js
|
370
|
+
|
371
|
+
|
372
|
+
|
373
|
+
const initialState = {
|
374
|
+
|
375
|
+
list: -1
|
376
|
+
|
377
|
+
}
|
378
|
+
|
379
|
+
export function id(state = initialState, action) {
|
380
|
+
|
381
|
+
const newState = JSON.parse(JSON.stringify(state));
|
382
|
+
|
383
|
+
switch (action.type) {
|
384
|
+
|
385
|
+
case 'DID_MOUNT':
|
386
|
+
|
387
|
+
newState.list = action.payload.id;
|
388
|
+
|
389
|
+
break;
|
390
|
+
|
391
|
+
default:
|
392
|
+
|
393
|
+
return state;
|
394
|
+
|
395
|
+
}
|
396
|
+
|
397
|
+
return newState;
|
398
|
+
|
399
|
+
};
|
400
|
+
|
401
|
+
export function name(state = initialState, action) {
|
402
|
+
|
403
|
+
const newState = JSON.parse(JSON.stringify(state));
|
404
|
+
|
405
|
+
switch (action.type) {
|
406
|
+
|
407
|
+
case 'DID_MOUNT':
|
408
|
+
|
409
|
+
newState.list = action.payload.name;
|
410
|
+
|
411
|
+
break;
|
412
|
+
|
413
|
+
default:
|
414
|
+
|
415
|
+
return state;
|
416
|
+
|
417
|
+
}
|
418
|
+
|
419
|
+
return newState;
|
420
|
+
|
421
|
+
};
|
422
|
+
|
423
|
+
|
424
|
+
|
425
|
+
|
426
|
+
|
427
|
+
```
|
2
エラーの内容修正
test
CHANGED
File without changes
|
test
CHANGED
@@ -1,34 +1,56 @@
|
|
1
|
-
|
1
|
+
フォームにて、入力した内容がlogで出力されるようにしたいが、
|
2
|
-
|
2
|
+
|
3
|
-
|
3
|
+
でエラーが出てしまいます。
|
4
|
-
|
5
|
-
|
6
4
|
|
7
5
|
エラー内容
|
8
6
|
|
7
|
+
```
|
8
|
+
|
9
|
+
Content.js:57 Uncaught TypeError: Cannot read property 'id' of undefined
|
10
|
+
|
9
|
-
|
11
|
+
at Content (Content.js:57)
|
12
|
+
|
10
|
-
|
13
|
+
```
|
14
|
+
|
15
|
+
```
|
16
|
+
|
17
|
+
react-dom.development.js:19814 The above error occurred in the <Content> component:
|
18
|
+
|
19
|
+
in Content (created by App)
|
20
|
+
|
21
|
+
```
|
22
|
+
|
23
|
+
```
|
24
|
+
|
25
|
+
Content.js:57 Uncaught TypeError: Cannot read property 'id' of undefined
|
26
|
+
|
11
|
-
|
27
|
+
at Content (Content.js:57)
|
28
|
+
|
29
|
+
```
|
30
|
+
|
31
|
+
・idが定義されていないと言われていますが、どう直せば良いのか分からず、進めないでいます。
|
12
32
|
|
13
33
|
|
14
34
|
|
15
35
|
React、JavaScript初心者です。改善点、問題解決のためのアプローチの方法、アドバイスいただけたらありがたいです。お願いします。
|
16
36
|
|
17
|
-
|
37
|
+
また、他に必要な情報があればあ追記します。
|
18
|
-
|
38
|
+
|
39
|
+
|
40
|
+
|
19
|
-
```
|
41
|
+
```Content.js
|
20
42
|
|
21
43
|
'use strict';
|
22
44
|
|
23
45
|
import React from 'react';
|
24
46
|
|
25
|
-
|
47
|
+
import { createStore } from "redux";
|
26
48
|
|
27
49
|
|
28
50
|
|
29
51
|
export default function Content(props) {
|
30
52
|
|
31
|
-
// 変数を定義
|
53
|
+
// 変数を定義、空の配列を作っている
|
32
54
|
|
33
55
|
const ids = [];
|
34
56
|
|
@@ -38,29 +60,27 @@
|
|
38
60
|
|
39
61
|
|
40
62
|
|
41
|
-
this.state = {value: ''};
|
42
|
-
|
43
|
-
|
44
|
-
|
45
|
-
this.handleChange = this.handleChange.bind(this);
|
46
|
-
|
47
|
-
this.handleSubmit = this.handleSubmit.bind(this);
|
48
|
-
|
49
|
-
|
50
|
-
|
51
|
-
|
63
|
+
const reducer = () => {
|
52
|
-
|
64
|
+
|
53
|
-
|
65
|
+
console.log("reducer has been called.");
|
54
|
-
|
66
|
+
|
55
|
-
}
|
67
|
+
}
|
68
|
+
|
69
|
+
|
70
|
+
|
56
|
-
|
71
|
+
const store = createStore(reducer, 1);
|
72
|
+
|
73
|
+
|
74
|
+
|
57
|
-
|
75
|
+
store.subscribe(() => {
|
58
|
-
|
76
|
+
|
59
|
-
|
77
|
+
console.log("store changed", store.getState());
|
60
|
-
|
61
|
-
|
78
|
+
|
62
|
-
|
63
|
-
}
|
79
|
+
});
|
80
|
+
|
81
|
+
|
82
|
+
|
83
|
+
store.dispatch({type: "INC"});
|
64
84
|
|
65
85
|
|
66
86
|
|
@@ -88,7 +108,7 @@
|
|
88
108
|
|
89
109
|
<tr key={index}>
|
90
110
|
|
91
|
-
<td>{id}</td>{ names[index] }<td>{pvs[index]}</td>
|
111
|
+
<td>{id}</td><td>{ names[index] }</td><td>{pvs[index]}</td>
|
92
112
|
|
93
113
|
</tr>
|
94
114
|
|
@@ -104,7 +124,7 @@
|
|
104
124
|
|
105
125
|
<h1>
|
106
126
|
|
107
|
-
Redux課題やってます
|
127
|
+
Redux課題やってます
|
108
128
|
|
109
129
|
</h1>
|
110
130
|
|
@@ -130,24 +150,228 @@
|
|
130
150
|
|
131
151
|
</tbody>
|
132
152
|
|
133
|
-
<form onSubmit={this.handleSubmit}>
|
134
|
-
|
135
|
-
<label>
|
136
|
-
|
137
|
-
name:
|
138
|
-
|
139
|
-
|
153
|
+
</table>
|
154
|
+
|
140
|
-
|
155
|
+
</>
|
156
|
+
|
157
|
+
);
|
158
|
+
|
159
|
+
}
|
160
|
+
|
161
|
+
|
162
|
+
|
163
|
+
export default function LoginForm(props) {
|
164
|
+
|
165
|
+
return(
|
166
|
+
|
167
|
+
<div className="card shadow-sm">
|
168
|
+
|
169
|
+
<div className="card-body">
|
170
|
+
|
171
|
+
<form>
|
172
|
+
|
173
|
+
<div className="form-group">
|
174
|
+
|
141
|
-
<input
|
175
|
+
<label htmlFor="inputName" className="col-form-label">name</label>
|
176
|
+
|
177
|
+
<input type="text"
|
178
|
+
|
179
|
+
className="form-control"
|
180
|
+
|
181
|
+
id="inputName"
|
182
|
+
|
183
|
+
placeholder="name"
|
184
|
+
|
185
|
+
value={props.authenticationDetails.Name}
|
186
|
+
|
187
|
+
onChange={(e) => props.onChangeInputName(e)} />
|
188
|
+
|
189
|
+
</div>
|
142
190
|
|
143
191
|
</form>
|
144
192
|
|
145
|
-
</table>
|
146
|
-
|
147
|
-
</>
|
193
|
+
</div>
|
194
|
+
|
148
|
-
|
195
|
+
</div>
|
196
|
+
|
149
|
-
)
|
197
|
+
)
|
150
198
|
|
151
199
|
}
|
152
200
|
|
153
201
|
```
|
202
|
+
|
203
|
+
|
204
|
+
|
205
|
+
```App.js
|
206
|
+
|
207
|
+
import React, { Component } from 'react';
|
208
|
+
|
209
|
+
|
210
|
+
|
211
|
+
import Header from './components/Header';
|
212
|
+
|
213
|
+
import Footer from './components/Footer';
|
214
|
+
|
215
|
+
import Top from './components/Top';
|
216
|
+
|
217
|
+
import Content from './components/Content';
|
218
|
+
|
219
|
+
|
220
|
+
|
221
|
+
|
222
|
+
|
223
|
+
class App extends Component {
|
224
|
+
|
225
|
+
constructor(props) {
|
226
|
+
|
227
|
+
super(props);
|
228
|
+
|
229
|
+
}
|
230
|
+
|
231
|
+
componentDidMount() {
|
232
|
+
|
233
|
+
const id = 1
|
234
|
+
|
235
|
+
const name = "name"
|
236
|
+
|
237
|
+
this.props.didMnt(id,name);
|
238
|
+
|
239
|
+
}
|
240
|
+
|
241
|
+
|
242
|
+
|
243
|
+
onChangeId = (e) => {
|
244
|
+
|
245
|
+
this.props.updateFormId(e.target.value);
|
246
|
+
|
247
|
+
}
|
248
|
+
|
249
|
+
// forName
|
250
|
+
|
251
|
+
onChangeName = (e) => {
|
252
|
+
|
253
|
+
this.props.updateFormName(e.target.value);
|
254
|
+
|
255
|
+
}
|
256
|
+
|
257
|
+
|
258
|
+
|
259
|
+
onSaveItem = () => {
|
260
|
+
|
261
|
+
console.log("SAVE_ID: ",this.props.conditions.id);
|
262
|
+
|
263
|
+
console.log("SAVE_NAME: ",this.props.conditions.name);
|
264
|
+
|
265
|
+
}
|
266
|
+
|
267
|
+
|
268
|
+
|
269
|
+
componentDidMount() {
|
270
|
+
|
271
|
+
(async () => {
|
272
|
+
|
273
|
+
const test = "test"
|
274
|
+
|
275
|
+
|
276
|
+
|
277
|
+
this.props.didMnt(test);
|
278
|
+
|
279
|
+
})();
|
280
|
+
|
281
|
+
}
|
282
|
+
|
283
|
+
|
284
|
+
|
285
|
+
render() {
|
286
|
+
|
287
|
+
console.log('App.render:', this.props);
|
288
|
+
|
289
|
+
|
290
|
+
|
291
|
+
const data1 = "AAAA";
|
292
|
+
|
293
|
+
const data2 = "data2";
|
294
|
+
|
295
|
+
|
296
|
+
|
297
|
+
|
298
|
+
|
299
|
+
const topData = ({data1}) => ({data1})
|
300
|
+
|
301
|
+
|
302
|
+
|
303
|
+
|
304
|
+
|
305
|
+
const contentData = ({data2}) => ({data2})
|
306
|
+
|
307
|
+
const ja = "*****Japan!";
|
308
|
+
|
309
|
+
|
310
|
+
|
311
|
+
const formItem = this.props
|
312
|
+
|
313
|
+
// formEvent
|
314
|
+
|
315
|
+
const contentHandler = ({onChangeId, onChangeName}) => ({onChangeId, onChangeName})
|
316
|
+
|
317
|
+
|
318
|
+
|
319
|
+
return (
|
320
|
+
|
321
|
+
<div className="content">
|
322
|
+
|
323
|
+
<Header />
|
324
|
+
|
325
|
+
sample site
|
326
|
+
|
327
|
+
<div className="row">
|
328
|
+
|
329
|
+
<div className="col-3">
|
330
|
+
|
331
|
+
<h1>{ja}</h1>
|
332
|
+
|
333
|
+
</div>
|
334
|
+
|
335
|
+
<div className="col-5">
|
336
|
+
|
337
|
+
<p>test</p>
|
338
|
+
|
339
|
+
</div>
|
340
|
+
|
341
|
+
</div>
|
342
|
+
|
343
|
+
<Top data1={data1} />
|
344
|
+
|
345
|
+
<br />
|
346
|
+
|
347
|
+
<br />
|
348
|
+
|
349
|
+
<br />
|
350
|
+
|
351
|
+
<div className="container">
|
352
|
+
|
353
|
+
<Content formItem={formItem} {...contentHandler(this)}/>
|
354
|
+
|
355
|
+
|
356
|
+
|
357
|
+
</div>
|
358
|
+
|
359
|
+
<br />
|
360
|
+
|
361
|
+
<br />
|
362
|
+
|
363
|
+
<br />
|
364
|
+
|
365
|
+
</div>
|
366
|
+
|
367
|
+
);
|
368
|
+
|
369
|
+
}
|
370
|
+
|
371
|
+
}
|
372
|
+
|
373
|
+
export default App;
|
374
|
+
|
375
|
+
|
376
|
+
|
377
|
+
```
|
1
エラー文追加
test
CHANGED
File without changes
|
test
CHANGED
@@ -4,7 +4,15 @@
|
|
4
4
|
|
5
5
|
|
6
6
|
|
7
|
+
エラー内容
|
8
|
+
|
9
|
+
「';' が必要です。ts(1005)」
|
10
|
+
|
11
|
+
→セミコロンをつけてもエラーは解決できませんでした
|
12
|
+
|
13
|
+
|
14
|
+
|
7
|
-
React、JavaScript初心者です。改善点、アプローチの方法、アドバイスいただけたらありがたいです。お願いします。
|
15
|
+
React、JavaScript初心者です。改善点、問題解決のためのアプローチの方法、アドバイスいただけたらありがたいです。お願いします。
|
8
16
|
|
9
17
|
|
10
18
|
|