Question

Which of the following functionality can NOT be developed using JavaScript only?

Question 1 options:

	A monthly calendar
	Adding some numbers
	A live clock showing date and time
	A synchronous chat room with multiple people from different places
	Showing different text based on time of the day.

Question 2 (0.5 points)

Saved

In the following JavaScript statement, what is the value of course[3]?

var course = new Array(4203, 89, 95, 77, 5443);

Question 2 options:

	4203
	77
	95
	null
	5443

Question 3 (1 point)

Which of the following statement about JavaScript is correct?

Question 3 options:

	JavaScript is a Web version of Java.
	JavaScript is interpreted by browsers.
	JavaScript is compiled by Java Virtual Machine.
	JavaScript is based on binary code.
	All JavaScript statements must be in the <header> tag

Question 4 (1 point)

Which of the following statement about JavaScript syntax is incorrect?

Question 4 options:

	In JavaScript, double quotes and single quotes both can be used for strings.
	A JavaScript statement ends with semicolon ;
	Variables in JavaScript can be declared without a specific data type.
	JavaScript functions do not return values.
	The + operator is used to concatenate strings.

Answer 1

Answer 1:
A synchronous chat room with multiple people from different places

as Javascript is client side framework we can't combine the people from differetn locations

Answer 2:77
indexes starts from 0,so at 3 we have 77

Answer 3: JavaScript is interpreted by browsers.
Js scripts will be executed by browsers

Answer 4:JavaScript functions do not return values.
JavaScript functions can return the values

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