index.js

const Client = require('./structures/bot/Client');
const client = new Client();
client.init();

// <String>.toPropercase() returns a proper-cased string such as: 
// "Mary had a little lamb".toProperCase() returns "Mary Had A Little Lamb"
String.prototype.toProperCase = function () {
  return this.replace(/([^\W_]+[^\s-]*) */g, (txt) => `${txt.charAt(0).toUpperCase() + txt.slice(1).toLowerCase()}`);
};

// These 2 process methods will catch exceptions and give *more details* about the error and stack trace.
process.on("uncaughtException", (err) => {
  const errorMsg = err.stack.replace(new RegExp(`${__dirname}/`, "g"), "./");
  console.error("Uncaught Exception: ", errorMsg);
  client.webhooks.error.send({content: `**${client?.user?.username || "???"} - uncaughtException:**\n\`\`\`\n${err.stack}`.slice(0,1995)+'\`\`\`', allowedMentions: { parse: [] } })
  // process.exit(1);
});

process.on("unhandledRejection", err => {
  console.error("Uncaught Promise Error: ", err);
  client.webhooks.error.send({content: `**${client?.user?.username || "???"} - unhandledRejection:**\n\`\`\`\n${err.stack}`.slice(0,1995)+'\`\`\`', allowedMentions: { parse: [] } })
});