/*
 * @Author: Rindy
 * @Date: 2021-09-14 20:02:23
 * @LastEditors: Rindy
 * @LastEditTime: 2021-09-14 20:03:48
 * @Description:
 */
/**
 * 对象属性拷贝
 *
 * @param {Object} target 目标对象
 * @param {Object} source 源对象
 * @return {Object} 返回目标对象
 */
export function extend(target, source) {
    for (var key in source) {
        if (source.hasOwnProperty(key)) {
            var value = source[key]
            if (typeof value !== 'undefined') {
                target[key] = value
            }
        }
    }

    return target
}

/**
 * 构建类之间的继承关系
 *
 * @param {Function} subClass 子类函数
 * @param {Function} superClass 父类函数
 */
export function inherits(subClass, superClass) {
    /* jshint -W054 */
    var subClassProto = subClass.prototype
    var F = new Function()
    F.prototype = superClass.prototype
    subClass.prototype = new F()
    subClass.prototype.constructor = subClass
    extend(subClass.prototype, subClassProto)
    /* jshint +W054 */
}