Learn about Web development, first learn H5 or JS?

When learning web development, first learn HTML5 because it is responsible for web structure and then learn JavaScript, which is responsible for dynamic interaction. HTML5 provides the basis of web pages, and JavaScript gives them life. Understanding basic concepts, avoiding falling into complex frameworks, and being good at hands-on practice and problem-solving will help improve web development skills.

Learn about Web development, first learn HTML5 or JavaScript? This question is so wonderful, just like asking whether there is a chicken or an egg first, it makes people want to explore it in depth. In fact, there is no absolute order, but there is a more efficient learning path that can help you avoid detours.

Many novices are confused about this. In fact, HTML5 and JavaScript are the cornerstones of web development and are indispensable, but they play different roles. HTML5 is responsible for building the structure of the web page, just like bricks and cement when building a house; JavaScript is responsible for the dynamic interaction of the web page, which is the lights, water pipes and various smart devices in the house. You can't install electric lights before building a house, right?

So, I suggest you learn HTML5 first . By learning HTML5, you will understand the basic structure of a web page and learn how to create tags, paragraphs, pictures, links, etc. This will allow you to quickly establish an intuitive feeling of web page construction. You can even write a few simple web pages in notepad first to experience the sense of accomplishment from scratch. This process will give you a deeper understanding of the composition of the web page and lay a solid foundation for subsequent learning of JavaScript.

Don't get me wrong, this does not mean that you can only touch JavaScript after learning HTML5. During the learning process, you can intersperse some basic JavaScript knowledge, such as simple DOM operations, so that you can see the power of JavaScript more intuitively and stimulate your interest in learning. Imagine that you built a simple page with HTML5 and then used a few lines of JavaScript code to make it move. That feeling is simply cool!

But remember that the focus of JavaScript in the early stage should be to understand basic concepts, such as variables, data types, operators, control processes, etc., rather than rushing to get started with various complex frameworks and libraries. Many novices dive into the frameworks such as React, Vue, and Angular at the beginning, but they were confused by various concepts and grammars and eventually gave up.

Next, let’s talk about the pitfalls that may be encountered during the learning process. Although HTML5 is relatively simple, it has many tags and complex attributes, so it is easy to remember and mix. My suggestion is to learn and practice while doing more projects. When encountering tags you don’t know, check the documents and practice more to deepen your impression. JavaScript is more complex. It is a dynamic language full of all kinds of strange tricks and tricks, which can easily make people lose their direction. Debugging JavaScript code is also a technical job, and it is crucial to learn to use the developer tools that come with your browser.

Finally, let’s talk about performance optimization. The performance optimization of HTML5 is mainly reflected in the rationality and semantic use of code structure, avoiding unnecessary tag nesting and redundant code. JavaScript performance optimization is more complex, involving algorithms, data structures, asynchronous programming, etc. This requires you to have a deeper understanding of the underlying mechanism of JavaScript.

In short, learning web development is a step-by-step process, and HTML5 and JavaScript complement each other. Master HTML5 first, and then learn JavaScript, which is more efficient and easier to persist. Remember, practice to create true knowledge, do more and think more, and you can become a web development expert!

 <code class="javascript">// 一个简单的HTML5和JavaScript结合的例子   <title>Hello World</title>   <p id="myParagraph">Hello World!</p> <script> document.getElementById("myParagraph").innerHTML = "JavaScript is awesome!"; </script>  </code>

This code shows how to create a paragraph with HTML5 and then modify the content of the paragraph with JavaScript. Isn't it very simple? But this is just the beginning. The world of web development is full of exciting things and is waiting for you to explore!

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