What should I do if I can't understand JavaScript?

In recent years, with the popularity of the Internet and the popularity of Web applications, more and more people have begun to come into contact with the JavaScript programming language. Although JavaScript has many advantages, such as being cross-platform and highly dynamic, many people are confused and unable to start when faced with it. Today, this article will introduce you to common difficulties and solutions for JavaScript beginners, hoping to help you learn and use this language better.

1. Insufficient understanding of language features and basic concepts

JavaScript is an object-based, event-driven and interpretive programming language. For beginners who have just come into contact with the JavaScript language, they may not know what variables are, what functions are, and basic concepts such as the relationship between JavaScript code and HTML/CSS. This will make it difficult for beginners to understand and master JavaScript.

Solution:

1. Learn basic language concepts: Understand the basic concepts of JavaScript language, such as variables, data types, operators, process control, etc. These basic concepts can be learned in various ways such as reading books, watching videos, and attending study classes.
2. More hands-on practice: By writing simple codes, practice the basic knowledge of JavaScript, such as operating DOM elements, event monitoring, etc., and continuously deepen your understanding and mastery of this language.

2. Don’t understand the programming style and specifications of JavaScript

The programming style and specifications of JavaScript are also a big difficulty for beginners, because in different projects and teams , there may be different coding standards and styles. If you do not master the basic style and specifications of JavaScript, it will make the code difficult to maintain and not conducive to team collaboration.

Solution:

1. Learn common programming standards: Master common coding standards, such as Airbnb JavaScript Style Guide, Google JavaScript Style Guide, etc.
2. Observe the coding style in actual projects: analyze the coding style of some actual projects, understand the coding style trends of some teams, and continuously improve your own code.

3. Debugging Difficulty

For beginners, debugging JavaScript code may be a headache, because it may need to be tested in multiple browsers and versions. And use a variety of development tools and techniques to ensure your code runs properly.

Solution:

1. Familiar with development tools: Understanding browser development tools, such as Google Chrome DevTools or Firefox development tools, can quickly diagnose and solve code problems.
2. Familiar with common errors: Learn common coding errors, such as spelling errors, grammatical errors, etc., and focus on automated checking when coding to reduce the error rate.

4. Don’t understand common JavaScript libraries and frameworks

With the development of JavaScript, there are now a large number of high-quality JavaScript libraries and frameworks to choose from, including jQuery, React, Vue wait. For beginners, it is difficult to know which libraries and frameworks are suitable for their needs, which can lead to beginners using the wrong libraries and frameworks, making the project less efficient and difficult to maintain.

Solution:

1. Research different libraries and frameworks: Study various JavaScript libraries and frameworks to understand their characteristics and uses.
2. Find the right libraries and frameworks: Find the libraries and frameworks that suit your project needs and learn to use them correctly.

Whether you are on your journey to learn JavaScript or encounter difficulties while using it, don’t give up easily. With continued study and practice, you can master the language and move to greater technical heights.

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