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JavaScript Programming Basics Quiz

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Questions and Answers

What is JavaScript commonly used for?

Formatting text documents
Creating databases
Running server-side code
Enhancing the functionality and appearance of web pages (correct)

What does DHTML consist of?

JavaScript only
HTML and JavaScript (correct)
CSS and JavaScript
HTML only

Where do JavaScripts often appear in an HTML5 document?

In the sidebar section
In the head section (correct)
In the footer section
In the body section

What does the type attribute in the script tag specify?

The scripting language used in the script (A) Signup and view all the answers

How can a string of characters be contained in JavaScript?

Between double quotation marks (D) Signup and view all the answers

What do JavaScript interpreters do in web browsers?

Process commands written in JavaScript (C) Signup and view all the answers

What does the + operator do when used to join two strings in JavaScript?

It concatenates the strings together (B) Signup and view all the answers

What does the method alert in JavaScript do?

It displays an alert dialog with a specified message (A) Signup and view all the answers

What happens when a backslash is encountered in a string of characters in JavaScript?

It escapes the next character to form an escape sequence (A) Signup and view all the answers

What is the purpose of the method write in JavaScript?

To display a string like writeln, but not position the output cursor at the beginning of the next line (D) Signup and view all the answers

What does the keyword 'var' signify in JavaScript?

It creates a new variable and assigns it a value (B) Signup and view all the answers

What is the role of semicolon in JavaScript?

It terminates each statement (C) Signup and view all the answers

How can JavaScript be included in a web page?

Either by using external JavaScript files or by embedding it directly within the HTML document (C) Signup and view all the answers

What happens when none of the proper uppercase and lowercase letters are used in JavaScript?

It is considered as a syntax error (D) Signup and view all the answers

What is the purpose of using escape sequences in JavaScript?

To represent special characters within strings (D) Signup and view all the answers

What is the significance of JavaScript being case-sensitive?

Using improper case results in syntax errors (A) Signup and view all the answers