A prompt box is a box which allows the user to enter input by providing a text box.  Label and box will be provided to enter the text or number.

Global variables are those that are available throughout the length of the code, that is, these have no scope. The var keyword is used to declare a local variable or object. If the var keyword is omitted, a global variable is declared.

This’ keyword is used to point at the current object in the code. For instance: If the code is presently at an object created by the help of the ‘new’ keyword, then ‘this’ keyword will point to the object being created.

// for Single line comments and

/* Multi

Line

Comment

*/

To submit a form using JavaScript use document.form[0].submit();

document.form[0].submit();

‘ViewState’ is specific to a page in a session.

‘SessionState’ is specific to user specific data that can be accessed across all pages in the web application.