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This article introduces the relevant knowledge of "what are the characteristics of JavaScript language and what is the difference between Java and language". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

What are the characteristics of JavaScript language

JavaScript adopts event-driven mode, which can respond to keyboard events, mouse events and browser window events at any time, and perform specified operations.

JavaScript is an interpreted scripting language, which does not need a special compiler to compile, and is directly embedded in the HTML document, which is interpreted and executed line by line by the browser, which reduces the pressure on the server.

JavaScript is relatively safe. JavaScript is client-side script that is interpreted and executed by the browser. It does not allow access to the local hard disk, can not save data to the server, does not allow to modify and delete network documents, can only achieve information browsing or dynamic interaction through the browser, so as to effectively prevent the loss of data.

To sum up, JavaScript is a scripting language with strong vitality and development potential. It can be directly embedded into HTML documents for browsers to interpret and execute, respond directly to client events, and call corresponding processing methods to quickly return processing results and update pages to achieve Web interaction and dynamics. At the same time, most of the work is handed over to the client, which greatly reduces the resource consumption of the Web server.

Advice for beginners

Strictly speaking, JavaScript is not an object-oriented programming language, but an "object-based" programming language. JavaScript object-oriented thinking and implementation is relatively obscure, if there is no "orthodox" object-oriented programming experience, in-depth study of JavaScript is more difficult, if you think that learning the C language and then learn JavaScript will be very easy, then you will be very disappointed. Therefore, the author suggests that before in-depth study of JavaScript, it is best to have the development experience of "orthodox" object-oriented programming languages such as PHP, C++, Java and so on.

Of course, if you just want to add some special effects to the web page, instead of working with JavaScript, you will find that JavaScript is very easy to learn and flexible, and many of its syntax is similar to or even the same as C language.

What are the differences between JavaScript and Java

JavaScript has nothing to do with Java. JavaScript is not a scripting language for Java, nor is it based on Java!

JavaScript and Java are different programming languages developed by two companies:

Java, a product of SUN, is an object-oriented programming language, which is suitable for software development, Web development, Android development and embedded development.

JavaScript, a product of Netscape, was originally designed to extend the functionality of Netscape browsers.

Note: JavaScript was originally named "LiveScript". With the popularity of Java, it was renamed "Javascript" for marketing purposes, which is completely a commercial means and has nothing to do with the combination of the language itself.

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