Front end must learn 40 selected cases of actual combat A lesson to understand HTML5 CSS3 JS 47 chap

Mondo Technology Updated on 2024-02-04

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With the rapid development of the Internet, front-end development has become an indispensable part of today's IT field. Whether it's for personal projects or enterprise-level application development, front-end development plays a vital role. In this article, we'll learn the core concepts, techniques, and practices that front-end essentials to help you build the web experience of the future.

2. HTML5 Basics.

HTML5 Semantic Tags: Understand and apply the semantic tags provided by HTML5, such as , , , , etc., to improve the structure and accessibility of web pages.

Semantic content: Use semantic tags to tag content, such as headings, paragraphs, and lists.

HTML5 Form Controls: Familiarize yourself with and master the new form controls added to HTML5, such as date and time pickers, color pickers, etc.

3. CSS3 is advanced.

CSS3 Selectors: Master various CSS3 selectors, such as class selectors, ID selectors, property selectors, etc., to control styles more flexibly.

CSS3 Animations & Transitions: Use CSS3's animations and transitions properties to add rich dynamics to web elements.

CSS3 Responsive Design: Learn and practice responsive design principles to ensure that your web pages look great on different devices and screen sizes.

CSS3 Layout Techniques: Master CSS3's Flexbox and Grid layouts for more efficient page layouts.

Fourth, the core knowledge of j**ascript.

Basic j**ascript syntax: Understand the basic syntax of j**ascript, including variables, data types, operators, conditional statements, and loop statements.

DOM Manipulation and Event Handling: Familiarity with how to manipulate DOM elements with J**Ascript and how to handle various user events.

AJAX & Fetch API: Understand and practice AJAX technology, as well as more modern Fetch APIs for asynchronous data interaction.

ES6+ New Features: Learn and master the new features of ECMASCRIPT 6 and later, such as arrow functions, module import and export, etc.

Front-end frameworks and libraries: Understand and practice front-end frameworks (such as React, Vue, Angular, etc.) and libraries (such as jquery, bootstrap, etc.) to improve development efficiency and maintainability.

Performance optimization: Learn and practice front-end performance optimization methods, such as splitting, lazy loading, and optimization.

Security: Understand and practice best practices for front-end security, such as preventing cross-site scripting (XSS), content security policies (CSPs), and more.

Tools and environments: Familiar with and master the tools and environments for front-end development and debugging, such as browser developer tools, version control systems (such as git), module packaging tools (such as webpack), etc.

Testing & Deployment: Understand and practice front-end testing methods and techniques, such as unit testing, end-to-end testing, etc. At the same time, be familiar with and master the process and method of automated deployment.

Continuous learning and practice: Front-end technology is changing with each passing day, and continuous attention and learning of new technologies and trends is a necessary condition for becoming a good front-end developer.

5. Summary. In today's fast-paced Internet era, the importance of front-end development is self-evident. By mastering the core knowledge of HTML5, CSS3 and J**ascript, combined with continuous learning and practice, you will be able to build powerful, high-performing, and engaging web pages and web applications.

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