Course7679
Course Introduction:"JS Abstract Class and Event Design Pattern Video Tutorial", JavaScript is a literal scripting language, a dynamically typed, weakly typed, prototype-based language with built-in support for types. Its interpreter is called the JavaScript engine, which is part of the browser and is widely used in client-side scripting languages. It was first used on HTML (an application under Standard Universal Markup Language) web pages to add dynamic functions to HTML web pages. .
Course2857
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.
Course1795
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
Course5521
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. .....
Course5172
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.
Best way to preload route data before accessing the route.
2023-11-17 14:54:42 0 2 379
Call to undefined function create_function()
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2023-11-16 14:36:03 0 12 290
Stream data from OpenAI's API using AJAX, PHP, and server-sent events
2023-11-11 12:03:23 0 1 497
What are the performance numbers next to components in the Vue dev tools?
2023-11-09 14:46:48 0 1 305
Course Introduction:Event capture is a mechanism for handling events in JavaScript. When an event is triggered on an element in the document, the event capture mechanism allows developers to capture and handle the event before it reaches the target element. The process of event capture starts from the document root node and is passed down to the target element step by step. The event capture mechanism is divided into capture phase, target phase and bubbling phase. This mechanism allows developers to capture and process the event before it reaches the target element. This mechanism is useful for actions that require intercepting or modifying events before they reach the target element.
2023-11-01 comment 0880
Course Introduction:In programming, capturing events refers to the process of monitoring and processing events, which involves four steps: "registering event listeners", "defining event processing functions", "event capturing and bubbling" and "processing events": 1 , register an event listener, tell the program to execute the corresponding code when a specific event occurs; 2. Define the event processing function, the developer defines a function to respond to the occurrence of a specific event; 3. Event capture and bubbling, in the DOM event model In , event capturing refers to propagation from outside to in, while event bubbling refers to propagation from inside to outside, etc.
2023-11-13 comment 0354
Course Introduction:Event bubbling and event capturing refer to two different ways of event propagation when handling events in the HTML DOM. Detailed introduction: 1. Event bubbling means that when an element triggers an event, the event will propagate from the innermost element to the outermost element. That is to say, the event is first triggered on the trigger element, and then bubbles upward step by step until it reaches the root element; 2. Event capture is the opposite process. The event starts from the root element and is captured step by step until it reaches the trigger event. Elements.
2023-11-21 comment 0136
Course Introduction:Events that cannot be captured include scroll events, window events, focus events, input events, and custom component events. Detailed introduction: 1. The scroll event is an event triggered when the user scrolls the web page. Due to the nature of scroll events, they cannot be processed in the event capture stage; 2. Window events refer to events related to the browser window, such as window resizing, closing, etc. These events are usually processed in the browser window itself, rather than Passed to the target element through the event stream; 3. Focus events refer to events triggered when an element gains or loses focus, etc.
2023-11-01 comment 0213
Course Introduction:Because event capture exists to solve the problem of how to effectively deliver and process events when an event occurs in the DOM tree, it is an event model that handles events in the event bubbling stage. By binding event handlers layer by layer and executing corresponding event handlers in the capture phase, it facilitates developers to obtain target elements and context information, customize event processing logic, effectively prevent event bubbling, and improve page response. speed etc.
2023-11-01 comment 0776