JavaScript Quiz with answers – Part 2
Practical questions to test your knowledge of JavaScript programming – Part 2
What is the object that is in TOP of the root in JavaScript?
url
top
window
document
Summary
Correct!
Wrong!
How to insert a comment on several lines?
// This comment has more
than one line //
than one line //
/* This comment has more
than one line */
than one line */
All the answers are true
Correct!
Wrong!
How do you find the number with the greatest value of "a" and "b"?
Math.ceil(a, b)
Math.max(a, b)
ceil(a, b)
top(a, b)
Correct!
Wrong!
How can you add a comment in a JavaScript code?
// This is a comment
"Ceci est un commentaire"
#This is a comment
Correct!
Wrong!
JavaScript is identical to Java?
True
False
Correct!
Wrong!
How to round the number 3.12 to a closer whole number?
Math.round(3.12)
Math.rnd(3.12)
float(3.12)
Math.float(3.12)
Correct!
Wrong!
What is the correct syntax for the while loop?
while (i <= 5)
while i = 1 to 5
while (i <= 5; i++)
while (i=0; i <= 5; i++)
Correct!
Wrong!
What is the correct syntax of the for loop?
for (i <= 10; i++)
for i = 1 to 10
for (i = 0; i <= 10)
for (i = 0; i <= 10; i++)
Correct!
Wrong!
What is the correct syntax for opening a new window called "f2"?
f2 = window.new("https://google.com");
f2 = window.open("https://google.com");
f2 = document.open("https://google.com");
Correct!
Wrong!
What is the correct way to write an array in JavaScript?
var fruits = 1 = ("orange"), 2 = ("banana"), 3 = ("apple")
var fruits = (1:"orange", 2:"banana", 3:"apple")
var fruits = "orange", "banana", "apple"
var fruits = ["orange", "banana", "apple"]
Correct!
Wrong!
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JavaScript Quiz – Part 2
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