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Exam (elaborations)

JavaScript Test Q&A (101 Questions) | Loops, Arrays, Functions, Syntax, DOM | Web Programming

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This document contains 101 well-structured JavaScript test questions with accurate answers, designed specifically for the 2025/2026 academic year. It serves as an essential resource for learners preparing for JavaScript exams, certifications, or interviews. Each question is marked with its verified answer, offering a ready-to-use study companion for theoretical understanding and syntax-level mastery. Key concepts covered include: JavaScript basics such as data types, variables, syntax, operators (==, ===, +=, %, ++, etc.), and built-in functions Control structures, including if...else, switch, for, while, do...while, as well as program control logic like sequential execution, decision making, and loop handling Functions and modular programming, exploring return types, parameters, recursion vs iteration, function scope, and function-based array manipulation Event-driven and client-side programming, DOM access methods (ln, getElementById, .value), HTML5 integration, and output formatting Advanced topics like array handling (Array(), .length, .join()), memory referencing (pass-by-reference vs pass-by-value), object manipulation, scope rules, modularity, and sorting using comparator functions The content also explores security-related elements (e.g., XSS), browser behavior, user input, pseudocode, and flowchart interpretation. This document is suitable for: Students of Computer Science, Software Engineering, Web Development, Information Systems, or IT Candidates preparing for JavaScript certifications or assessments Front-end developers in training Lecturers and tutors needing quality practice material or assignments Bootcamp learners aiming to reinforce foundational and advanced JavaScript knowledge Keywords: JavaScript, loops, functions, arrays, syntax, recursion, iteration, switch statement, DOM manipulation, , prompt, alert, control structures, flowchart symbols, operators, parseInt, pseudocode, Math object, random numbers, variable scope, pass by reference, pass by value, comparator function, sorting, nested arrays, HTML5 scripting, event-driven programming

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Uploaded on
September 29, 2025
Number of pages
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Written in
2025/2026
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JavaScript Test 2025/2026 Exam
Questions and Verified Answers |
Already Graded A+



6.1 In the following line the word document is a(n) ______ that resides in

the computer's memory.

document.writeln("Hello World");

a) attribute

b) behavior

c) object


d) method - 🧠ANSWER ✔✔c) Object


6.2 In the following line, the word writeln is a(n) _________ that performs a

task or action in the script.

document.writeln("Hello World");

,a) structure

b) collection

c) object


d) method - 🧠ANSWER ✔✔d) Method


6.3 Consider the following HTML5 code.

<html>

<script type = "text/javascript">

<!--

<!-- document.writeln("Hello World"); -->

//-->

</script>

</html>




What would a browser capable of scripting display when executing this

code?

a) document.writeln("Hello World");

,b) nothing

c) Hello World

d) <html>

<script type = "text/javascript">

<!--

<!-- document.writeln("Hello World </p>");

//-->

</script>


</html> - 🧠ANSWER ✔✔b) Nothing


6.4 Which of the following statements would correctly print out the sentence

"Hello World" in blue?

a) document.write( "<p style = \"color: blue\");

document.write( "Hello World >");

b) document.write( "<p> style = \"color: blue\" Hello World </p>);

c) document.write( "<p style = \"color: blue\" Hello World + "</p>");

d) document.write( "<p style = \"color: blue\">");



3
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED

, document.write( "Hello World </p>"); - 🧠ANSWER ✔✔d) document.write(

"<p style = \"color: blue\">");

document.write( "Hello World </p>");

6.5 An alert dialog displaying the text "Welcome!" is created by calling

_________.

a) window.alert( "Welcome!" );

b) alert.window( "Welcome!" );

c) window( "alert = \"Welcome!\"" );


d) window( "<alert> Welcome! </alert>" ); - 🧠ANSWER ✔✔a) window.alert(

"Welcome!" );

6.6 Consider the following script. What is wrong with the following code?

<script type = "text/javascript">

var firstNumber;

thirdNumber;




firstNumber = window.prompt("Enter an integer", "0");

secondNumber = window.prompt("Enter an integer", "0");

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