end of the line. Multiple line comments begins with /* and ends with */. For example: // JavaScript single line comment// Multiple line comments begins with /* and ends with */ Points to Remember: • The <script> tag alerts the browser program to start interpreting all the text between these tags as a script • JavaScript is a case sensitive language • The scope of a variable is the life time of a variable of source code in which it is defined • A literal is a fixed value given to a variable in source code. • An expression is a code fragment that can be evaluated to some data type the language supports.
• Java Script supports all basic arithmetic operators like +, - , *, / & % • Java scripts has an in built feature of concatenating strings. • The types of operator is used to get the data type of a variable. • JavaScript supports important types of dialog boxes also called as pop up boxes, alert box, confirm dialog box and prompt dialog box. • ?: is the conditional operator in Java Script also called as ternary operator.
Chapter Pages Evaluation Part-I Choose the correct answer: . Which provided a common scripting language to web developers to design, test and deploy Internet Application A) C B) C++ C) Java D) JavaScript . Expand CGI A) Common Gateway Interface B) Complex Gateway Information C) Common Gateway Information D) Complex Gateway Interface . JavaScript programming language is used to develop the A) Dynamic Web Page B) Window C) Web Page D) Home Page .
The Dynamic Web Page help to save server’s A) Work B) Route C) Traffic D) Pvath . User entered data, is validated before sending it to server is called A) Server traffic B) Dynamic Web Page C) Server Route D) Web server . Java Scripts can be implemented using which statements? A) <head> B) <Java> C) <script> D) <text> .
Expand A) Distance Hyper Text Markup language B) Dynamic Hyper Text Markup language C) Distance High