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.

Questions and Answers

Answer : D

Explanation

All of the above options are correct.

Q 2 - How can you get the total number of arguments passed to a function?

A - Using args.length property

B - Using arguments.length property

C - Both of the above.

D - None of the above.

Answer : B

Explanation

Using arguments.length property, we can get the total number of arguments passed to a function.

Q 3 - Which built-in method returns the index within the calling String object of the first occurrence of the specified value?

A - getIndex()

B - location()

C - indexOf()

D - None of the above.

Answer : C

Explanation

indexOf() method returns the index within the calling String object of the first occurrence of the specified value, or -1 if not found.

Q 4 - Which built-in method sorts the elements of an array?

A - changeOrder(order)

B - order()

C - sort()

D - None of the above.

Answer : C

Explanation

sort() method sorts the elements of an array.

Q 5 - Which of the following function of Boolean object returns a string of either 'true' or 'false' depending upon the value of the object?

A - toSource()

B - valueOf()

C - toString()

D - None of the above.

Answer : C

Explanation

toString() − Returns a string of either 'true' or 'false' depending upon the value of the object.

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

A - substr()

B - search()

C - lastIndexOf()

D - indexOf()

Answer : D

Explanation

indexOf() − Returns the index within the calling String object of the first occurrence of the specified value, or -1 if not found.

Q 7 - Which of the following function of String object creates an HTML anchor that is used as a hypertext target?

A - anchor()

B - link()

C - blink()

D - big()

Answer : A

Explanation

anchor() − Creates an HTML anchor that is used as a hypertext target.

Q 8 - Which of the following function of String object creates an HTML hypertext link that requests another URL?

A - link()

B - sub()

C - sup()

D - small()

Answer : A

Explanation

link() − Creates an HTML hypertext link that requests another URL.

Q 9 - Which of the following function of Array object calls a function for each element in the array?

A - concat()

B - every()

C - filter()

D - forEach()

Answer : D

Explanation

forEach() − Calls a function for each element in the array.

Q 10 - Which of the following function of Array object adds and/or removes elements from an array?

A - toSource()

B - sort()

C - splice()

D - unshift()

Answer : C

Explanation

splice() − Adds and/or removes elements from an array.

javascript_questions_answers.htm
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