如何为我的 Discord.js 机器人编写事件/命令处理程序?

Setting up the handler.

To make the actual handler, you can place the following code in a function to load events...

const requireAll = require('require-all');   // Don't forget to install!

const files = requireAll({                   // Require all the files within your
  dirname: `${__dirname}/events`,            // event directory which have a name
  filter: /^(?!-)(.+).js$/                  // ending in '.js' NOT starting
});                                          // with '-' (a way to disable files).

client.removeAllListeners();                 // Prevent duplicate listeners on reload.
                                             // CAUTION: THIS REMOVES LISTENERS
                                             // ATTACHED BY DISCORD.JS!

for (const name in files) {                  // Iterate through the files object
  const event = files[name];                 // and attach listeners to each
                                             // event, passing 'client' as the
  client.on(name, event.bind(null, client)); // first parameter, and the rest
                                             // of the expected parameters
  console.log(`Event loaded: ${name}`);      // afterwards. Then, log the
}                                            // successful load to the console.

现在，当您的客户端发出您有文件的事件之一时，其中的代码就会运行.

module.exports.run = async (client, message, args) => {
  // This code will be executed to
  // run the 'help' command.
};

module.exports.config = {
  name: 'help',
  aliases: ['h'] // Even if you don't want an alias, leave this as an array.
};

const requireAll = require('require-all');   // Using the same npm module...

const files = requireAll({                   // Require all the files within your
  dirname: `${__dirname}/commands`,          // command directory which have a name
  filter: /^(?!-)(.+).js$/                  // ending in '.js' NOT starting
});                                          // with '-' (a way to disable files).

client.commands = new Map();                 // Create new Maps for the corresponding
client.aliases = new Map();                  // command names/commands, and aliases.

for (const name in files) {                  // Iterate through the files object
  const cmd = files[name];                   // and set up the 'commands' and
                                             // 'aliases' Maps. Then, log the
  client.commands.set(cmd.config.name, cmd); // successful load to the console.
  for (const a of cmd.config.aliases) client.aliases.set(a, cmd.config.name);

  console.log(`Command loaded: ${cmd.config.name}`);
}

const prefix = '!'; // Example
const [cmd, ...args] = message.content.trim().slice(prefix.length).split(/s+/g);

const command = client.commands.get(cmd) || client.commands.get(client.aliases.get(cmd));
if (command) {
  command.run(client, message, args);
  console.log(`Executing ${command.config.name} command for ${message.author.tag}.`);
}