how to send a message to a channel discord.js code example
Example 1: send a message to a specific channel discord.js
client.channels.get("<ID of the channel you want to send to>").send("<your message content here>")
Example 2: discord js sending a message to a specific channel
client.channels.cache.get('CHANNEL ID').send('Hello World!')
Example 3: discord js channel send
const user = <client>.users.cache.get('<id>');
user.send('<content>');
Example 4: discord js channel send
const channel = <client>.channels.cache.get('<id>');
channel.send('<content>');