Javascript Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to Javascript Framework. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Q 1 - Which of the following is correct about features of JavaScript?

A - JavaScript is is complementary to and integrated with HTML.

B - JavaScript is open and cross-platform.

C - Both of the above.

D - All of the above.

Answer : C

Explanation

Both of the above options are correct.

Q 2 - Which of the following type of variable is visible everywhere in your JavaScript code?

A - global variable

B - local variable

C - Both of the above.

D - None of the above.

Answer : A

Explanation

Global Variables: A global variable has global scope which means it is visible everywhere in your JavaScript code.

Q 3 - Which built-in method removes the last element from an array and returns that element?

A - last()

B - get()

C - pop()

D - None of the above.

Answer : C

Explanation

pop() method removes the last element from an array and returns that element.

Q 4 - Which of the following code creates an object?

A - var book = Object();

B - var book = new Object();

C - var book = new OBJECT();

D - var book = new Book();

Answer : B

Explanation

var book = new Object(); creates an object.

Q 5 - Which of the following function of Boolean object returns a string containing the source of the Boolean object?

A - toSource()

B - valueOf()

C - toString()

D - None of the above.

Answer : A

Explanation

toSource() − Returns a string containing the source of the Boolean object; you can use this string to create an equivalent object.

Q 6 - Which of the following function of String object returns the index within the calling String object of the last occurrence of the specified value?