PrototypeJS Javascript Framework MCQs (Chapterwise Multiple Choice Questions)

Prototype is considered what kind of framework?

An HTML framework.

A JavaScript framework for developing dynamic web applications.

A network framework.

A programming framework.

Answer & Explanation

Correct Answer: A JavaScript framework for developing dynamic web applications.

Note: This Question is unanswered, help us to find answer for this one

Lets say you have an array with name myArray. How would you organize a loop?

Using "for" statement or Array#iter iterator.

Using "for" statement or Array#each iterator.

Using Array#prototype iterator or "for" statement.

Using "for" statement only, Array#each is not an iterator.

Answer & Explanation

Correct Answer: Using "for" statement or Array#each iterator.

Note: This Question is unanswered, help us to find answer for this one

How can you get access to the DOM element using Prototype?

$(id), where id is a string.

$(id) or $(element), where id is a string and element is an Element itself.

$$(id) where id is a string.

$(element) where element is an Element itself.

Answer & Explanation

Correct Answer: $(id) or $(element), where id is a string and element is an Element itself.

Note: This Question is unanswered, help us to find answer for this one

To use JSON with AJAX, what must be invoked on the transport's responseText property?

String#evalJava

#evalJSON

String#evalJSON

Object#evalJSON

Answer & Explanation

Correct Answer: String#evalJSON

Note: This Question is unanswered, help us to find answer for this one

What object is informed about every AJAX request?

Responders.Ajax

Ajax.Element

Ajax.Responders

Element.Ajax

Answer & Explanation

Correct Answer: Ajax.Responders

Note: This Question is unanswered, help us to find answer for this one

Which of the following is not a targeted platform for development?

Apple Safari

Mozilla Firefox

Microsoft Internet Explorer

Netscape Navigator

Answer & Explanation

Correct Answer: Netscape Navigator

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How would you remove a class named 'removeclass' from an element?

There is not a method to remove class names

$('element').removeClassName('removeclass');

$('#element').className.replace('removeclass','');

$('#element').removeClass('removeclass');

Answer & Explanation

Correct Answer: $('element').removeClassName('removeclass');

Note: This Question is unanswered, help us to find answer for this one

$w is responsible for?

Splitting a string into a larger string.

Splitting an element into a string.

Splitting a string into an array.

Converting an array into an object.

Answer & Explanation

Correct Answer: Splitting a string into an array.

Note: This Question is unanswered, help us to find answer for this one

The IE properties, offsetWidth and clientHeight along with computed CSS are able to measure elements. Why not use them?

The version of Prototype has changed so they are incompatible.

IE properties struggle with “offset” vs. “client” dimensions, and CSS units need to be converted to be compatible.

They are both outdated.

There is no problem in using them since they are powerful and accurate parameters.

Answer & Explanation

Correct Answer: IE properties struggle with “offset” vs. “client” dimensions, and CSS units need to be converted to be compatible.

Note: This Question is unanswered, help us to find answer for this one

What property stores the active Ajax requests?

There is no property set to the number of active requests

Ajax.activeRequestCount

$.ajax.length

Ajax.active

Answer & Explanation

Correct Answer: Ajax.activeRequestCount

Note: This Question is unanswered, help us to find answer for this one

PrototypeJS Javascript Framework Quick Quiz

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