Ace your WGU C777 Unit 3: JavaScript assessment with this comprehensive guide containing 70
carefully curated questions and verified answers. This targeted resource helps you
confidently master DOM manipulation, user input validation, and event handling, ensuring you pass
your Web Development Applications OA on the first try.
Why You Need This Guide:
• Exam-Focused Prep: Skip the fluff. Get straight to the core JavaScript concepts that
frequently appear on the actual WGU Objective Assessment.
• Verified Answers: Eliminate the guesswork. Every question comes with a clear, accurate,
and verified explanation to help you understand the why behind the code.
• Topics Covered: Deep dive into JavaScript syntax, functions, form validation limitations,
window methods, and browser APIs.
What is Inside:
1. Interactive Elements: Code segments for creating input text checked against regular
expressions.
2. Form Validation: Understanding the role of HTML pattern attributes and when to use
them.
3. Functions & DOM: Clear definitions of function roles, how to use DOM window methods,
and understanding the Document Object Model.
4. Error Handling & APIs: Breakdown of load-time, run-time, and logic errors, plus
knowledge of Canvas and Geolocation APIs.
1
, Quiz_________________?
<a href="#" onMouseOver="helloFunction();">Click Here</a> -
Answer✅
How do you apply inline scripting to an element?
Quiz_________________?
=-
Answer✅
Which operator is used to assign values?
Quiz_________________?
0-
Answer✅
What is the value of myVar after execution?
function counter(x) {
return x + 1;
}
var myVar = 0;
counter(myVar);
alert(myVar);
Quiz_________________?
a letter,
2
, the underscore ( _ ), or
the dollar sign ( $ ) -
Answer✅
What must variable names begin with?
Quiz_________________?
abort -
Answer✅
Which event occurs when the loading of an image is terminated?
Quiz_________________?
alert() -
Answer✅
Which method creates a pop-up box with the specified message string, which the user can
dismiss by clicking a button in the box?
Quiz_________________?
an object-based language
based upon an event-driven model
is platform-independent
enables quick development
is relatively easy to learn -
Answer✅
What are key characteristics and features of JavaScript?
3