What is the difference between javascript and asp

Difference: 1. ASP is a server-side scripting language, while JavaScript is a browser-side scripting language. 2. ASP allows processing of HTTP request headers and can perform any operation on the server side; JavaScript has limited access to HTTP headers and cannot perform any operations on the server side.

The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.

javascript

JavaScript is a scripting language that belongs to the Internet. It has been widely used in Web application development and is often used to add various dynamic functions to web pages. , providing users with a smoother and more beautiful browsing effect. Usually JavaScript scripts realize their functions by embedding them in HTML.

#asp：

ASP stands for Active Server Pages. It is a server-side scripting environment developed by Microsoft. It can be used to create dynamic interactive web pages and build powerful web application.

When the server receives a request for an ASP file, it processes the server-side script code contained in the HTML web page file that is used to build the file that is sent to the browser. In addition to server-side script code, ASP files can also contain text, HTML (including associated client-side script) and COM component calls.

ASP is simple and easy to maintain, and is the choice for small page applications. When using DCOM (Distributed Component Object Model) and MTS (Microsoft Transaction Server), ASP can even implement medium-sized enterprise applications. .

The difference between javascript and asp

There are many differences between ASP and JavaScript, but the key one is: ASP is a server-side scripting language. JavaScript is a browser-side scripting language.

ASP is executed by the server and therefore allows processing HTTP request headers (cookies, web page references, user agent strings and other personal information sent by the browser when requesting, etc.), connecting to databases and running on them, Read or write log files, etc., even run some programs on the server.

Thus, it can generate dynamic HTML content and serve it to the user's browser. For example, a login page requires server-side scripting (in ASP, PHP...) to check the validity of login and password (fixed text, information from database...) and generate appropriate HTML content.

JavaScript, on the other hand, has limited access to HTTP headers and cannot perform any operations on the server side (because it runs on the visitor's browser).

However, it can respond to and interact with user actions on web pages generated by the server (the server tells the browser what options are available to the user and what should be done in response to the user's actions).

Javascript is more limited, but it provides the tools to extend the behavior of a web page when the server has finished processing and lost control of it. Basic functionality of verification.

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