Course 9016
Course Introduction:Object-oriented part of learning, from object-oriented basics to advanced object-oriented, from independent development of object-oriented to system use of object-oriented, from theoretical explanation to illustrations, all-round explanation of object-oriented.
Course 2857
Course Introduction:Course introduction: 1. Cross-domain processing, token management, route interception; 2. Real interface debugging, API layer encapsulation; 3. Secondary encapsulation of Echarts and paging components; 4. Vue packaging optimization and answers to common problems.
Course 1795
Course Introduction:Apipost is an API R&D collaboration platform that integrates API design, API debugging, API documentation, and automated testing. It supports grpc, http, websocket, socketio, and socketjs type interface debugging, and supports privatized deployment. Before formally learning ApiPost, you must understand some related concepts, development models, and professional terminology. Apipost official website: https://www.apipost.cn
Course 5521
Course Introduction:(Consult WeChat: phpcn01) The comprehensive practical course aims to consolidate the learning results of the first two stages, achieve flexible application of front-end and PHP core knowledge points, complete your own projects through practical training, and provide guidance on online implementation. Comprehensive practical key practical courses include: social e-commerce system backend development, product management, payment/order management, customer management, distribution/coupon system design, the entire WeChat/Alipay payment process, Alibaba Cloud/Pagoda operation and maintenance, and project online operation. .....
Course 5172
Course Introduction:(Consult WeChat: phpcn01) Starting from scratch, you can solve conventional business logic, operate MySQL with PHP to add, delete, modify, and query, display dynamic website data, master the MVC framework, master the basics of the ThinkPHP6 framework, and learn and flexibly master all knowledge involved in PHP development. point.
2023-08-28 12:14:33 0 1 260
代码中得到一个数组arr=[1,2,3];因为马上会被销毁,所以不能直接赋值给对象Obj.a,请问这种情况jquery如何写,使得arr销毁之后Obj.a=[1,2,3]?
2017-07-05 11:04:38 0 4 716
2017-07-05 11:02:11 0 3 658
javascript - Object.assign() 深拷贝和浅拷贝的问题
如上图,据描述,Object.assign()为浅拷贝, 为什么改变属性a不是指向同一个引用,而b.c指向了同一个引用?
2017-06-28 09:26:21 0 3 869
javascript - What is the use of clone method in js?
有时候对数组之类的操作的时候,会使用clone方法,感觉不使用这个直接赋值也可以啊,这样做有什么好处?为了省内存?还有什么浅拷贝深拷贝之类的,原谅我是小白。。
2017-06-26 10:52:02 0 3 568
Course Introduction:JavaScript 深拷贝是指创建一个独立于原始对象的副本。实现方法: 1. 创建目标对象; 2. 遍历原始对象,复制属性值; 3. 若属性值为引用类型,则递归复制; 4.
2024-06-04 comment 0 844
Course Introduction:在C++指针操作中,浅拷贝复制指针地址,对其中一个指针修改数据会影响另一个指针指向的数据,而深拷贝复制实际数据,创建独立的副本,修改其中一个指针不会影响另一个指针指向的数据。
2024-05-26 comment 889
Course Introduction:面向对象编程(OOP)在PHP中的深入理解:OOP是一种编码范例,可提高代码的可模块性、可重用性和可维护性。基本概念包括对象(数据和方法)、类(对象蓝图)、继承(从父类继承属性和方法)、多态(对相同消息做出不同响应)和抽象(定义接口而不提供实现)。在PHP中,创建类可定义对象的结构和行为,而创建对象可访问成员变量和方法。继承允许子类继承父类的属性和方法。多态使对象能够对相同消息做出不同响应。抽象类创建仅定义接口而无需提供实现的类。
2024-05-17 comment 102
Course Introduction:PHPOOP的深入理解涉及几个关键问题:如何处理成员变量的可见性?-使用public、protected和private修饰符。如何理解继承和多态性?-使用接口或抽象类定义契约并注入依赖。如何管理对象的生命周期?-使用垃圾回收机制或unset()函数释放对象,防止内存泄漏。
2024-05-16 comment 954
Course Introduction:浅拷贝复制对象指针或引用,仅适用于不含动态分配内存或简单数据结构的对象;深拷贝复制实际数据,包括动态分配内存,适用于包含动态分配内存或复杂数据结构的对象。
2024-05-14 comment 0 633