I am making a simple real-time chat web-app using socket.io and in the frontend part I am getting Too many render error , even though all my setState are outside the return part of Component I have attached the code for App.js of React frontend part
Pardon me for naive attitude , I am a novice programmer and this is my first question
function App() {
const [name, setName] = useState("");
const [msg, setMsg] = useState("");
const [chat, setChat] = useState([]);
useEffect(() => {
socket.on("connect", () => {
console.log( `Connected`);
});
socket.on("message", (msg_obj) => {
ChatList(msg_obj);
});
}, []);
function ChatList(msg_obj){
setChat((chat) => [...chat, msg_obj]);
}
function addChat ()
{
const id = socket.id;
socket.emit("message", { id, msg, name });
setMsg("");
};
function settingname(tobenamed)
{
setName(tobenamed);
}
function settingmessage(messagevalue)
{
setMsg(messagevalue);
}
return (
<div className="App">
<header className="App-header">
<div className="chat-area">
{chat.map((msg_obj) => {
return (
<span className="Block">
<h4 key={msg_obj.id}>{msg_obj.name}</h4>
<p> {msg_obj.msg} </p>
</span>
)
})}
</div>
<form id="chatter-form">
<input
type="text"
placeholder="Enter username"
className="username-field"
onChange={
(event) => {
settingname(event.target.value);
}
}
/>
<button className="username-submit" >Go</button>
<input
type="text"
placeholder="Enter username"
className="message-field"
onChange={(event) => {
settingmessage(event.target.value);
}}
/>
<button className="message-submit" onClick={addChat()}>SEND</button>
</form>
</header>
</div>
);
}```
Your button is calling addChat because it has parentheses after it. Make sure you pass a reference to the function rather than call it.
You want addChat instead of addChat()
<button className="message-submit" onClick={addChat}>SEND</button>