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

Contenu du cours

Introduction to JavaScript (staging)

Introduction to JavaScript (staging)

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

book
Number 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)
Tâche

Swipe to start coding

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.

Solution

Switch to desktopPassez à un bureau pour une pratique réelleContinuez d'où vous êtes en utilisant l'une des options ci-dessous
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Comment pouvons-nous l'améliorer ?

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Section 3. Chapitre 13
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book
Number 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)
Tâche

Swipe to start coding

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.

Solution

Switch to desktopPassez à un bureau pour une pratique réelleContinuez d'où vous êtes en utilisant l'une des options ci-dessous
Tout était clair ?

Comment pouvons-nous l'améliorer ?

Merci pour vos commentaires !

Section 3. Chapitre 13
Switch to desktopPassez à un bureau pour une pratique réelleContinuez d'où vous êtes en utilisant l'une des options ci-dessous
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