channel = client.channels.cache.get('757685515255545917'); channel.send('Pong');
client.channels.get("<ID of the channel you want to send to>").send("<your message content here>")
let channel = message.guild.channels.cache.get(c => c.name === 'the channel name') channel.send("Your message")
message.reply("message here"); message.channel.send("message here");
message.channel.send("A message!"); message.reply("A message to the sender!");