The course is devoted to the study of the programming language j & # 097; vascript. The main attention is paid to the logic of developing j & # 097; vascript code and the basic principles of its use on the pages of the World Wide Web. World Wide Web technology is a technology for running hypertext distributed systems in Intemet, and therefore it must meet the general definition of such systems. This means that all of the above components of the hypertext system must be on the web.