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September 1, 2022 00:35
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same ReactJS incremental counter in functional style using HOC,render props and Hooks
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import React,{useEffect,useState} from "react"; | |
const useCounter=()=>{ | |
const [count,setCount] = useState(0) | |
useEffect(()=>{ | |
let timer = setInterval(()=>{setCount(v=>v+10)},2000) | |
return ()=>{clearInterval(timer)} | |
},[]) | |
return [count] | |
} | |
const MessageUpdatedWithHook = ()=>{ | |
const [count] = useCounter() | |
return(<Message message={count} color="red"/>) | |
} | |
const withHigherOrderComponent = (Component) => (props) => { | |
const [count,setCount] = useState(0) | |
useEffect(()=>{ | |
let timer = setInterval(()=>{setCount(v=>v+1)},2000) | |
return ()=>{clearInterval(timer)} | |
},[]) | |
return( | |
<Component message={count} {...props} /> | |
) | |
} | |
const WithRenderProps = (props)=>{ | |
const [count,setCount] = useState(0) | |
useEffect(()=>{ | |
let timer = setInterval(()=>{setCount(v=>v+1)},2000) | |
return ()=>{clearInterval(timer)} | |
},[]) | |
return( | |
<div> | |
{props.render(count)} | |
</div> | |
) | |
} | |
const Message = (props)=>{ | |
const {message,color} = props | |
return( | |
<div style={{color}}> | |
{message} | |
</div> | |
) | |
} | |
const Sample = (props)=>{ | |
const WithHOC = withHigherOrderComponent(Message) | |
return( | |
<div> | |
<MessageUpdatedWithHook/> | |
<WithHOC color="green"/> | |
<WithRenderProps render={(v)=><Message message={v} color="gray" />}/> | |
</div> | |
) | |
} | |
export default function App() { | |
return ( | |
<div className="App"> | |
<h1>Incremental counter implemented in HOC,render props and Hooks</h1> | |
<Sample/> | |
<h2>Cocodrino</h2> | |
</div> | |
); | |
} |
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