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.
Course 8713
Course Introduction:(Consult WeChat: phpcn01) The learning objectives of the front-end development part of the 22nd issue of PHP Chinese website: 1. HTML5/CSS3; 2. JavaScript/ES6; 3. Node basics; 4. Vue3 basics and advanced; 5. Mobile mall/ Website background homepage layout; 6. Automatic calculation of tabs/carousels/shopping carts...
2023-09-11 19:44:46 0 1 231
标题重写为:错误:无效的元素类型:预期为字符串(用于内置组件)或类/函数(用于复合组件),但实际得到的是未定义的元素类型
2023-09-01 13:23:24 0 1 268
javascript - Why can't jqeury's ID selector with string concatenation be used?
2017-06-30 09:59:52 0 6 711
What is the principle of sort() method in JavaScript and how is it implemented?
sort()对数组排序,对原有数组元素进行调换,但是它是怎么实现的,是通过冒泡?快排还是别的什么排序方法呢?求教~ {代码...}
2017-06-12 09:22:48 0 2 722
现有一数组,内有10个元素,已按元素的某一属性排序(比如时间字符串)。现在需要将数组中时间相同的元素取出,放入一个小数组中,再将这些小数组放入一个大数组中,请问该如何操作?最好有代码。
2017-04-26 09:01:49 0 1 336
Course Introduction:PHP数组查找元素原理:确定键的哈希值。查找对应哈希值的桶。在桶内遍历并比较键值对。找到匹配键时返回元素。
2024-05-05 comment 0 908
Course Introduction:PHP的array_group()函数可用于按指定键对数组进行分组,以查找重复元素。该函数通过以下步骤工作:使用key_callback指定分组键。可选地使用value_callback确定分组值。对分组元素进行计数并识别重复项。因此,array_group()函数对于查找和处理重复元素非常有用。
2024-05-05 comment 0 196
Course Introduction:在打乱顺序的PHP数组中查找特定元素的方法有:遍历数组并比较元素。使用array_search()函数查找键。使用in_array()函数检查存在性。
2024-05-04 comment 0 391
Course Introduction:在PHP中针对特定元素查找的最佳数据结构选择取决于查找要求:数组:适用于小数组或不频繁查找。有序数组:允许二分查找,适用于需要高效查找的排序数组。SplFixedArray:优化数组,提高速度和内存利用率,具有与数组类似的查找效率。哈希表:以键值对存储数据,允许通过键极快查找,但占用更多内存。
2024-05-04 comment 390
Course Introduction:查找PHP数组中特定元素的内存优化策略包括:使用in_array进行顺序扫描(低内存,O(n)时间复杂度)。使用array_key_exists检查元素键(相似内存和时间复杂度)。使用哈希表(常数时间复杂度,但内存开销更大)。
2024-05-04 comment 0 1005