What are the characteristics of javascript language

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Javascript language has many characteristics, such as scripting language, object-based, simple, dynamic, cross-platform and so on. Javascript is an interpreted, object-based scripting language.

This article operating environment: windows10 system, javascript 1.8.5, thinkpad T480 computer.

Javascript language has the following characteristics:

Script language

JavaScript is an interpreted scripting language. Languages such as C and C++ are compiled and then executed, while JavaScript is explained line by line in the process of running the program.

Object-based

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

simple

The JavaScript language uses weak variable types and does not make strict requirements on the data types used. It is a scripting language based on Java basic statements and control, and its design is simple and compact.

Dynamic property

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

Cross-platform

The JavaScript scripting language does not depend on the operating system and only needs the support of browsers. So a JavaScript script can be written and used on any machine, as long as the browser on the machine supports the JavaScript scripting language, and JavaScript is already supported by most browsers. [6] unlike server-side scripting languages, such as PHP and ASP,JavaScript, are mainly run on users' browsers as client-side scripting languages and do not require server support. So in the early days, programmers preferred JavaScript to reduce the burden on the server, while at the same time brought another problem, security.

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