JS --- first sight

When learning something, you must first understand its nature. JavaScript is a language, specifically a scripting language and a prototype-based object-oriented language, used to develop dynamic web pages. Since JavaScript is a language, let's take a look at the similarities and differences between it and the language we usually learn. As a language, it has a public part of the language, such as: data type, constant variables, operators, expressions, arrays, three structures (sequence, selection, loop), and events; javascript is different from other languages, such as regular expressions, built-in objects, document objects, window and frame Objects, and form objects. When learning JavaScript, you still need to learn about DOM. Note: DOM is not JavaScript. Let's take a look at the figure below and have a general understanding of JS. When learning, let's take a look at the common place. We just need to learn different places and it feels much easier. Javascript is based on almost all languages and does not need to be learned. It is a difference between objects and what needs to be learned. After sorting out the differences, there is not much to learn. When learning something, you must first understand its nature. JavaScript is a language, specifically a scripting language and a prototype-based object-oriented language, used to develop dynamic web pages. Since JavaScript is a language, let's take a look at the similarities and differences between it and the language we usually learn. As a language, it has a public part of the language, such as: data type, constant variables, operators, expressions, arrays, three structures (sequence, selection, loop), and events; javascript is different from other languages, such as regular expressions, built-in objects, document objects, window and frame Objects, and form objects. When learning JavaScript, you still need to learn about DOM. Note: DOM is not JavaScript. Let's take a look at the figure below and have a general understanding of JS. When learning, let's take a look at the common place. We just need to learn different places and it feels much easier. Javascript is based on almost all languages and does not need to be learned. It is a difference between objects and what needs to be learned. After sorting out the differences, there is not much to learn.