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 - Is JavaScript a case-sensitive language?

A - true

B - false

Answer : A

Explanation

Yes! JavaScript is a case-sensitive language. This means that language keywords, variables, function names, and any other identifiers must always be typed with a consistent capitalization of letters.

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 Number object returns a string value version of the current number in a format that may vary according to a browser's locale settings.?

Answer : C

Explanation

toLocaleString() − Returns a string value version of the current number in a format that may vary according to a browser's locale settings.

Q 6 - Which of the following function of String object returns a number indicating whether a reference string comes before or after or is the same as the given string in sort order?

Answer : A

Explanation

localeCompare() − Returns a number indicating whether a reference string comes before or after or is the same as the given string in sort order.

Q 7 - Which of the following function of String object returns a string representing the specified object?

A - toLocaleUpperCase()

B - toUpperCase()

C - toString()

D - substring()

Answer : C

Explanation

toString() − Returns a string representing the specified object.

Q 8 - Which of the following function of String object causes a string to be displayed in the specified size as if it were in a <font size = 'size'> tag?