Exploring JavaScript Built-in Objects

Exploring JavaScript Built-in Objects

5th Grade

12 Qs

quiz-placeholder

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Exploring JavaScript Built-in Objects

Exploring JavaScript Built-in Objects

Assessment

Quiz

Other

5th Grade

Practice Problem

Hard

Created by

Arbresha Ajrula

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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