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 - Which of the following is a valid type of function javascript supports?

A - named function

B - anonymous function

C - Both of the above.

D - None of the above.

Answer : C

Explanation

A function in JavaScript can be either named or anonymous.

Q 3 - Which of the following type of variable takes precedence over other if names are same?

A - global variable

B - local variable

C - Both of the above.

D - None of the above.

Answer : B

Explanation

A local variable takes precedence over a global variable with the same name.

Q 4 - Which built-in method returns the calling string value converted to upper case?

A - toUpperCase()

B - toUpper()

C - changeCase(case)

D - None of the above.

Answer : A

Explanation

toUpperCase() method returns the calling string value converted to upper case.

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.?

A - toExponential()

B - toFixed()

C - toLocaleString()

D - toString()

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 splits a String object into an array of strings by separating the string into substrings?

A - slice()

B - split()

C - replace()

D - search()

Answer : B

Explanation

split() − Splits a String object into an array of strings by separating the string into substrings.

Q 7 - Which of the following function of String object returns the calling string value converted to upper case?

A - toLocaleUpperCase()

B - toUpperCase()

C - toString()

D - substring()

Answer : B

Explanation

toUpperCase() − Returns the calling string value converted to upper case.

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

A - fixed()

B - fontcolor()

C - blink()

D - bold()

Answer : B

Explanation

fontcolor() − Causes a string to be displayed in the specified color as if it were in a <font color = 'color'> tag.

Q 9 - Which of the following function of Array object removes the last element from an array and returns that element?

A - pop()

B - push()

C - join()

D - map()

Answer : A

Explanation

pop() − Removes the last element from an array and returns that element.

Q 10 - Which of the following function of Array object represents the source code of an object?

A - toSource()

B - splice()

C - toString()

D - unshift()

Answer : A

Explanation

toSource() − Represents the source code of an object.

javascript_questions_answers.htm
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