
Exploring JavaScript Built-in Objects
Authored by Arbresha Ajrula
Other
5th Grade
Used 1+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the purpose of the Math object in JavaScript?
To handle asynchronous operations
To store user data in JavaScript
The purpose of the Math object in JavaScript is to provide mathematical functions and constants.
To create HTML elements dynamically
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
How do you call a method from a built-in object?
Access the method via 'object->methodName()'.
Use the syntax 'object.methodName()'.
Invoke the method with 'object:methodName()'.
Call the method using 'methodName.object()'.
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What does the Math.random() method return?
A boolean indicating true or false.
A whole number between 1 and 10.
A floating-point number between 0 and 1.
A string representing a random value.
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the range of numbers returned by Math.random()?
0 < Math.random() <= 1
0 <= Math.random() <= 1
-1 < Math.random() < 2
0 <= Math.random() < 1
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
How can you generate a random number between 0 and 50 using Math.random()?
Math.random() * 100
Math.round(Math.random() * 50)
Math.floor(Math.random() * 51)
Math.ceil(Math.random() * 50)
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What operator is used to access methods of an object in JavaScript?
->
[]
::
.
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What will Math.random() * 50 likely return?
A number between 0 and 50 (exclusive)
A string representation of a number
A number greater than or equal to 50
A negative number
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