The message global is available when a command runs from a text message trigger.

Properties

Property	Description
content	Message text
author.id	Author user ID
author.username	Author username

Methods

await message.reply(content)

Reply in the same channel.

const args = message.content.split(' ');
const body = args.slice(1).join(' ');
await message.reply(body || 'Usage: !echo <text>');