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Update the React example to use functional component #13

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Update the React example to use functional component #13

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5df4702
Update the React example to use functions.
rememberlenny May 12, 2020
dfebe49
Turn class into functional component
rememberlenny May 12, 2020
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23 changes: 12 additions & 11 deletions react/src/ui.tsx
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Original file line number Diff line number Diff line change
@@ -1,33 +1,34 @@
import * as React from 'react'
import * as ReactDOM from 'react-dom'
import './ui.css'
import Logo from './logo.svg'

declare function require(path: string): any

class App extends React.Component {
textbox: HTMLInputElement
const App = () => {
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I think the following is better

Suggested change
const App = () => {
const App: React.FC = () => {

let textbox: HTMLInputElement;

countRef = (element: HTMLInputElement) => {
const countRef = (element: HTMLInputElement) => {
if (element) element.value = '5'
this.textbox = element
textbox = element
}

onCreate = () => {
const count = parseInt(this.textbox.value, 10)
const onCreate = () => {
const count = parseInt(textbox.value, 10)
parent.postMessage({ pluginMessage: { type: 'create-rectangles', count } }, '*')
}

onCancel = () => {
const onCancel = () => {
parent.postMessage({ pluginMessage: { type: 'cancel' } }, '*')
}

render() {
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@shuta13 shuta13 Jul 18, 2021 •
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I don't think the render() is necessary, just return should do it.

return <div>
<img src={require('./logo.svg')} />
<img src={Logo} />
<h2>Rectangle Creator</h2>
<p>Count: <input ref={this.countRef} /></p>
<button id="create" onClick={this.onCreate}>Create</button>
<button onClick={this.onCancel}>Cancel</button>
<p>Count: <input ref={countRef} /></p>
<button id="create" onClick={onCreate}>Create</button>
<button onClick={onCancel}>Cancel</button>
</div>
}
}
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