@webeach/event-manager/lib/cjs/modules/EventManager/utils.js

EventManager is a library for simplifying event handling in JavaScript

'use strict';

function validateEventObject(event) {
    return event instanceof Event;
}
function validateEventType(eventType) {
    return typeof eventType === 'string' && eventType !== '';
}
function validateHandler(handler) {
    return typeof handler === 'function';
}
function validateHandlerList(handlerList) {
    return Array.isArray(handlerList)
        ? handlerList.every(validateHandler)
        : validateHandler(handlerList);
}
function validateTargetType(target) {
    // return target instanceof EventTarget
    return (typeof target.addEventListener === 'function' &&
        typeof target.removeEventListener === 'function' &&
        typeof target.dispatchEvent === 'function');
}

exports.validateEventObject = validateEventObject;
exports.validateEventType = validateEventType;
exports.validateHandler = validateHandler;
exports.validateHandlerList = validateHandlerList;
exports.validateTargetType = validateTargetType;
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