What are the characteristics of JavaScript

The characteristics of JavaScript are: 1. JavaScript is an interpreted scripting language that can create objects or use existing objects; 2. JavaScript is an object-based scripting language, based on Java basic statements and control scripting language; 3. JavaScript language uses weakly typed variable types; 4. JavaScript is an event-driven scripting language; 5. JavaScript scripting language does not depend on the operating system and only requires the support of the browser .

The operating environment of this tutorial: Windows 10 system, javascript version 1.8.5, Dell G3 computer.

javascript has the following characteristics:

1. Scripting language.

JavaScript is an interpreted scripting language. Languages ​​such as C and C are first compiled and then executed, while JavaScript is interpreted line by line during the running of the program.

2. Object-based.

JavaScript is an object-based scripting language that can not only create objects, but also use existing objects.

3. Simple.

The JavaScript language uses weakly typed variable types and does not impose strict requirements on the data types used. It is a scripting language based on Java's basic statements and controls. Its design is simple and compact.

4. Dynamic.

JavaScript is an event-driven scripting language that can respond to user input without going through the Web server. When visiting a web page, JavaScript can directly respond to these events when the mouse is clicked, moved up or down, or moved in the window.

5. Cross-platform.

JavaScript script language does not depend on the operating system and only requires browser support. Therefore, after writing a JavaScript script, it can be brought to any machine for use, provided that the browser on the machine supports the JavaScript scripting language. Currently, JavaScript is supported by most browsers.

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