const { Client } = require('discord.js');

const client = new Client();

client.on('ready', () => {

  console.log(`Logged in as ${client.user.tag}!`);

});

client.on('message', msg => {

  if (msg.content === 'ping') {

    msg.reply('pong');

  }

});

client.login('ODA4MzAzNzYxNTgzMTEyMjUy.YCElig.weC3GlDRj4zEF9yzbJxUy3gxHv8');

PS C:\Users\33623\OneDrive\Bureau\discord> node .\main.js

(node:7912) UnhandledPromiseRejectionWarning: Error [TOKEN_INVALID]: An invalid token was provided.

    at WebSocketManager.connect (C:\Users\33623\OneDrive\Bureau\discord\node_modules\discord.js\src\client\websocket\WebSocketManager.js:133:26)

    at Client.login (C:\Users\33623\OneDrive\Bureau\discord\node_modules\discord.js\src\client\Client.js:223:21)

(Use `node --trace-warnings ...` to show where the warning was created)

(node:7912) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)

(node:7912) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not 

handled will terminate the Node.js process with a non-zero exit code.