@daysnap/utils/es/chunk-HYCW7PL5.js

通用的工具库

// src/eventBus.ts
var events = {};
function off(eventName, callback) {
  if (events[eventName]) {
    events[eventName] = events[eventName].filter((item) => item !== callback);
    if (!events[eventName].length) {
      delete events[eventName];
    }
  }
}
function on(eventName, callback) {
  ;
  (events[eventName] || (events[eventName] = [])).push(callback);
  return () => off(eventName, callback);
}
function emit(eventName, ...args) {
  const callbacks = events[eventName];
  if (callbacks) {
    callbacks.forEach((callback) => callback(...args));
  }
}
function clear(eventName) {
  if (eventName) {
    delete events[eventName];
  } else {
    events = {};
  }
}
var eventBus = {
  on,
  off,
  emit,
  clear
};

export {
  eventBus
};