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useRef for storing mutable information
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| import React, {useRef, useState} from 'react' | |
| const MessageInputComponent = () => { | |
| const [message, setMessage] = useState("") | |
| const sentMessage = useRef(0); | |
| const sendMessage = () => { | |
| if(sentMessage.current === 3){ | |
| return alert("Message Limit Reached") | |
| } | |
| sentMessage.current += 1 | |
| //code to handle sending message | |
| } | |
| return( | |
| <div> | |
| <input onChange = {() => setMessage(e.target.value)} value={message}/> | |
| <button onClick={sendMessage}>Send</button> | |
| </div> | |
| ) | |
| } | |
| export default MessageInputComponent |
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