Javascript Online Quiz

Q 1 - Which of the following is an advantage of using JavaScript?

A - Less server interaction

B - Immediate feedback to the visitors

C - Increased interactivity

D - All of the above.

Q 2 - Which of the following is true about cookie handling in JavaScript?

A - JavaScript can manipulate cookies using the cookie property of the Document object.

B - JavaScript can read, create, modify, and delete the cookie or cookies that apply to the current web page.

C - Both of the above.

D - None of the above.

Q 3 - Which built-in method calls a function for each element in the array?

A - while()

B - loop()

C - forEach()

D - None of the above.

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();

Q 5 - Which of the following function of Number object returns the number's value?

A - toString()

B - valueOf()

C - toLocaleString()

D - toPrecision()

Q 6 - Which of the following function of String object is used to find a match between a regular expression and a string, and to replace the matched substring with a new substring?

A - concat()

B - match()

C - replace()

D - search()

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()

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()

Q 9 - Which of the following function of Array object returns true if every element in this array satisfies the provided testing function?

A - concat()

B - every()

C - push()

D - some()

Q 10 - Which of the following function of Array object reverses the order of the elements of an array?

A - reverse()

B - push()

C - reduce()

D - reduceRight()