Is it possible auto sending a message to a channel after login

[yuchinchenTW]

the bot is in the server

and I would like to send the message by itself after the bot login something like(without receive user msg)

[yuchinchenTW]

nvm I just figure it out
client.login(token);
client.once('ready', () => {
console.log(Logged in as ${client.user.tag}!);
console.log(client.channels.cache.get("channel id").send("hello"));
})