[Solved] Identify the error in this Remix WebSocket client code:const socket = new WebSocket('ws://localhost:3000'); socket.onmessage = (event) => { console.log(event.data); }; socket.send('Hello'); | Remix

Remix - Advanced Patterns

Identify the error in this Remix WebSocket client code:

const socket = new WebSocket('ws://localhost:3000');
socket.onmessage = (event) => {
  console.log(event.data);
};
socket.send('Hello');

AMissing event listener for onopen

BCalling send() before connection is open causes error

CWebSocket URL should use https:// protocol

Donmessage handler syntax is incorrect

Step-by-Step Solution

Solution:

Step 1: Recall WebSocket send() timing rules
send() must be called only after the connection is open; otherwise, it throws an error.
Step 2: Check code for send() timing
send('Hello') is called immediately after creation, before connection opens, causing error.
Final Answer:
Calling send() before connection is open causes error -> Option B
Quick Check:
send() before open event causes error [OK]

Quick Trick: Wait for onopen before sending messages [OK]

Common Mistakes:

MISTAKES

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