The Modern JavaScript Bootcamp (2019) - Exploring Number Methods
Interactive Video
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Information Technology (IT), Architecture
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University
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Practice Problem
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary use of the twoFixed method in JavaScript?
To convert a number to a string
To specify the number of decimal places
To generate a random number
To round a number to the nearest integer
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method would you use to round a number to the nearest integer in JavaScript?
Math.floor
Math.round
Math.random
Math.ceil
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the Math.floor method do?
Generates a random number
Rounds a number up to the nearest integer
Rounds a number down to the nearest integer
Formats a number to a fixed number of decimal places
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method would you use to always round a number up?
Math.round
Math.floor
Math.random
Math.ceil
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does Math.random generate numbers?
Between 0 and 1, inclusive
Between 0 and 1, exclusive
Between 0 and 10, inclusive
Between 0 and 10, exclusive
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of multiplying Math.random by (max - min) in the random number formula?
To shift the range of numbers
To round the number
To convert the number to a string
To scale the range of numbers
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of Math.random() * (max - min) + min?
An error
A fixed number
A random number between min and max
A random number between 0 and 1
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