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Number 2/3 | Data Types and Variables
Introduction to JavaScript (staging)
course content

Course Content

Introduction to JavaScript (staging)

Introduction to JavaScript (staging)

1. Introduction
2. JavaScript syntax
3. Data Types and Variables

bookNumber 2/3

Rounding of Numbers

Rounding is one of the most frequent operations on the numbers. JavaScript provides several built-in functions for rounding which are given in the below table.

FunctionDescriptionExample
Math.floor()Rounds off to the lower limit3.1 becomes 3, and -1.1 becomes -2.
Math.ceil()Rounds off the number to the upper limit3.1 becomes 4, and -1.1 becomes -1.
Math.round()Rounds off the nearest integer when value is equal or greater than .53.1 becomes 3, 3.6 becomes 4, and 3.5 rounds up to 4 (the middle case)

Task

A variable named price with the assigned value of 4.7 has been given to you. Your task is to round off this variable such that we get 4 as the output.

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Section 3. Chapter 13
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bookNumber 2/3

Rounding of Numbers

Rounding is one of the most frequent operations on the numbers. JavaScript provides several built-in functions for rounding which are given in the below table.

FunctionDescriptionExample
Math.floor()Rounds off to the lower limit3.1 becomes 3, and -1.1 becomes -2.
Math.ceil()Rounds off the number to the upper limit3.1 becomes 4, and -1.1 becomes -1.
Math.round()Rounds off the nearest integer when value is equal or greater than .53.1 becomes 3, 3.6 becomes 4, and 3.5 rounds up to 4 (the middle case)

Task

A variable named price with the assigned value of 4.7 has been given to you. Your task is to round off this variable such that we get 4 as the output.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 3. Chapter 13
toggle bottom row

bookNumber 2/3

Rounding of Numbers

Rounding is one of the most frequent operations on the numbers. JavaScript provides several built-in functions for rounding which are given in the below table.

FunctionDescriptionExample
Math.floor()Rounds off to the lower limit3.1 becomes 3, and -1.1 becomes -2.
Math.ceil()Rounds off the number to the upper limit3.1 becomes 4, and -1.1 becomes -1.
Math.round()Rounds off the nearest integer when value is equal or greater than .53.1 becomes 3, 3.6 becomes 4, and 3.5 rounds up to 4 (the middle case)

Task

A variable named price with the assigned value of 4.7 has been given to you. Your task is to round off this variable such that we get 4 as the output.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Everything was clear?

How can we improve it?

Thanks for your feedback!

Rounding of Numbers

Rounding is one of the most frequent operations on the numbers. JavaScript provides several built-in functions for rounding which are given in the below table.

FunctionDescriptionExample
Math.floor()Rounds off to the lower limit3.1 becomes 3, and -1.1 becomes -2.
Math.ceil()Rounds off the number to the upper limit3.1 becomes 4, and -1.1 becomes -1.
Math.round()Rounds off the nearest integer when value is equal or greater than .53.1 becomes 3, 3.6 becomes 4, and 3.5 rounds up to 4 (the middle case)

Task

A variable named price with the assigned value of 4.7 has been given to you. Your task is to round off this variable such that we get 4 as the output.

Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
Section 3. Chapter 13
Switch to desktopSwitch to desktop for real-world practiceContinue from where you are using one of the options below
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