JavaScript is a scripting language that is used to add interactivity and dynamic effects to web pages. Although JavaScript has the word "script" in its name, it is not written in a scripting language. In fact, JavaScript is an interpreted programming language, neither a compiled language nor an assembly language.
The writing language of JavaScript is text, and you can use a text editor or IDE to write code. The code includes many statements and expressions, which are part of the JavaScript language. They are used to implement program logic, control flow, data processing, etc.
JavaScript is an object-oriented programming language that supports many programming concepts such as encapsulation, inheritance, and polymorphism. In JavaScript, an object is a basic data type, an entity composed of a set of properties and methods. Objects in JavaScript can be created, modified, and deleted to achieve the goals of the program.
To better organize and manage code, JavaScript also supports functions. A function is a reusable block of code that can be called multiple times or passed as parameters to other functions. JavaScript also supports advanced syntax such as anonymous functions and arrow functions, providing developers with a more flexible programming method.
In addition, JavaScript also provides many built-in objects and methods for processing strings, arrays, dates, regular expressions, and more. At the same time, JavaScript can interact with data in the background through Ajax technology to achieve functions such as dynamic updates and asynchronous loading.
In short, JavaScript is a powerful and flexible programming language that can be used to develop rich, interactive web pages and web applications.
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