Javascript Online Quiz

Q 1 - Which of the following is true about variable naming conventions in JavaScript?

A - JavaScript variable names must begin with a letter or the underscore character.

B - JavaScript variable names are case sensitive.

C - Both of the above.

D - None of the above.

Q 2 - Which of the following is the correct syntax to redirect a url using JavaScript?

A - document.location='http://www.newlocation.com';

B - browser.location='http://www.newlocation.com';

C - navigator.location='http://www.newlocation.com';

D - window.location='http://www.newlocation.com';

Q 3 - Which built-in method adds one or more elements to the end of an array and returns the new length of the array?

A - last()

B - put()

C - push()

D - None of the above.

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

A - changeOrder(order)

B - reverse()

C - sort(order)

D - None of the above.

Q 5 - Which of the following function of String object combines the text of two strings and returns a new string?

A - add()

B - merge()

C - concat()

D - append()

Q 6 - Which of the following function of String object executes the search for a match between a regular expression and a specified string?

A - concat()

B - match()

C - replace()

D - search()

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

A - toLocaleUpperCase()

B - toUpperCase()

C - toString()

D - substring()

Q 8 - Which of the following function of Array object returns a new array comprised of this array joined with other array(s) and/or value(s)?

A - concat()

B - pop()

C - push()

D - some()

Q 9 - Which of the following function of Array object creates a new array with all of the elements of this array for which the provided filtering function returns true?

A - concat()

B - every()

C - filter()

D - some()

Q 10 - Which of the following function of Array object removes the first element from an array and returns that element?

A - reverse()

B - shift()

C - slice()

D - some()