Created
May 2, 2023 23:28
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Practicing Lifthing State up with React Js
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import React, { useState } from "react"; | |
const Child = ({ resize, resizeParenObj }) => { | |
const { setResizeParent, resizeBox: resizeParent } = resizeParenObj; | |
return ( | |
<div | |
style={{ | |
width: `${resize}px`, | |
height: `${resize}px`, | |
margin: 10, | |
backgroundColor: "black", | |
color: "#fff", | |
padding: 10, | |
fontSize: 20, | |
fontWeight: 600, | |
textAlign: "center", | |
}} | |
> | |
<h3>Child</h3> | |
<button | |
onClick={() => { | |
resizeParent("increase", setResizeParent); | |
}} | |
> | |
+ | |
</button> | |
<button | |
onClick={() => { | |
resizeParent("decrease", setResizeParent); | |
}} | |
> | |
- | |
</button> | |
</div> | |
); | |
}; | |
const Parent = () => { | |
const [resizeChild, setResizeChild] = useState(150); | |
const [resizeParent, setResizeParent] = useState(150); | |
const resizeBox = (action, setStateHook) => { | |
switch (action) { | |
case "increase": | |
setStateHook((prevState) => prevState + 20); | |
break; | |
case "decrease": | |
setStateHook((prevState) => prevState - 20); | |
break; | |
} | |
}; | |
return ( | |
<div | |
style={{ display: "flex", flexDirection: "column", alignItems: "center" }} | |
> | |
<h1>Props and Lifting state up</h1> | |
<div | |
style={{ | |
width: `${resizeParent}px`, | |
height: `${resizeParent}px`, | |
margin: 10, | |
backgroundColor: "red", | |
padding: 10, | |
fontSize: 20, | |
fontWeight: 600, | |
textAlign: "center", | |
}} | |
> | |
<h3>Parent</h3> | |
<button | |
onClick={() => { | |
resizeBox("increase", setResizeChild); | |
}} | |
> | |
+ | |
</button> | |
<button | |
onClick={() => { | |
resizeBox("decrease", setResizeChild); | |
}} | |
> | |
- | |
</button> | |
</div> | |
<Child | |
resize={resizeChild} | |
resizeParenObj={{ setResizeParent, resizeBox }} | |
/> | |
</div> | |
); | |
}; | |
export default Parent; |
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