thank you in advance, however, before answering the question, read carefully what I ask for help with all due respect. What i need:
I need that when the delete button is clicked, the component is not only deleted, but also leaves behind another button, by clicking on which, the remote component is rendered back
Functionality that already works: rendering a component on click, as well as deleting by a button
import React, {useState} from 'react';
import ReactDOM from 'react-dom';
interface IParams {
id: number;
}
interface IBlock {
deleteBlock(blockToDelete: number) : void
id: number
}
function App() {
const [newBlock, setNewBlock] = useState([] as IParams[])
const createOnClick = () => {
const newId = {
id: newBlock.length + 1
}
setNewBlock([...newBlock, newId])
}
const deleteBlock = (blockToDelete: number) => {
setNewBlock(
newBlock.filter((x) => {
return x.id !== blockToDelete
})
)
}
const FunctionalBlock: React.FC<IBlock> = ({id, deleteBlock}) => {
return (
<div style={{display: 'flex', maxWidth: '300px', justifyContent: 'space-between'}}>
<div>i was created {id} times</div>
<button onClick={() => {
deleteBlock(id)
}}>now delete me</button>
</div>
)
}
return (
<div className="App">
<button onClick={createOnClick}>
New block
</button>
{
newBlock.map((x) => (
<FunctionalBlock id={x.id} key={x.id} deleteBlock={deleteBlock}/>
))
}
</div>
);
}
ReactDOM.render(
<React.StrictMode>
<App />
</React.StrictMode>,
document.getElementById('root')
);
Why not just set a state on the block?
const {useState} = React
const FunctionalBlock = ({ id, idx, isDeleted, toggleBlockState }) => {
return (
<div
style={{
display: "flex",
maxWidth: "300px",
justifyContent: "space-between"
}}
>
{
!isDeleted
? <React.Fragment>
<div>i was created {idx} times</div>
<button
onClick={toggleBlockState}
>
now delete me
</button>
</React.Fragment>
: <button onClick={toggleBlockState}>REVIVE BLOCK</button>
}
</div>
)
;
};
const getNewBlock = (idx) => ({
id: Date.now(),
idx,
isDeleted: false,
})
const toggleIsDeletedById = (id, block) => {
if (id !== block.id) return block
return {
...block,
isDeleted: !block.isDeleted
}
}
const App = () => {
const [newBlock, setNewBlock] = useState([])
const createOnClick = () => {
const block = getNewBlock(newBlock.length + 1)
setNewBlock([...newBlock, block])
}
const toggleBlockStateById = (id) => {
setNewBlock(newBlock.map((block) => toggleIsDeletedById(id, block)))
}
return (
<div>
<div>NEW BLOCK</div>
<div><button onClick={createOnClick}>ADD NEW BLOCK +</button></div>
<div>
{
newBlock.map(block => <FunctionalBlock {...block} toggleBlockState={() => toggleBlockStateById(block.id)}/>)
}
</div>
</div>
);
};
ReactDOM.render(
<React.StrictMode>
<App />
</React.StrictMode>,
document.getElementById("root")
);<script crossorigin src="https://unpkg.com/react@18/umd/react.production.min.js"></script>
<script crossorigin src="https://unpkg.com/react-dom@18/umd/react-dom.production.min.js"></script>
<div id="root"></div>