publisher-subscriber-pattern/dist/_types.js

Publisher subscriber pattern that can be used with different event emitters including browser window

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.isValidEmitter = void 0;
// EventCallback is generic, thus generic type of Event can be used (e.g. type React.Events )
;

var isValidEmitter = function isValidEmitter(emitterInstance, addListenerMethodName, removeListenerMethodName) {
  return addListenerMethodName in emitterInstance && removeListenerMethodName in emitterInstance && typeof emitterInstance[addListenerMethodName] === 'function' && typeof emitterInstance[removeListenerMethodName] === 'function';
};

exports.isValidEmitter = isValidEmitter;