Assignment operators in Javascript - Mini Project: Build & Apply

Using Assignment Operators in JavaScript

📖 Scenario: You are managing a small online store's inventory. You want to update the stock quantities using assignment operators to make your code shorter and clearer.

🎯 Goal: Learn how to use assignment operators like +=, -=, *=, and /= to update variables efficiently.

📋 What You'll Learn

Create variables with initial stock values

Create a variable for the number of items sold

Use assignment operators to update stock values

Print the final stock values

💡 Why This Matters

🌍 Real World

Updating inventory counts quickly and clearly is important in managing stores or warehouses.

💼 Career

Understanding assignment operators helps write cleaner code for tasks like updating values, counters, or calculations in many programming jobs.

1

Create initial stock variables

Create three variables called apples, oranges, and bananas with initial values 50, 30, and 20 respectively.

Javascript

// Your code here

Need a hint?

Use let to declare variables and assign the exact numbers.

2

Create a variable for items sold

Create a variable called sold and set it to 5 to represent the number of items sold for each fruit.

Javascript

let apples = 50;
let oranges = 30;
let bananas = 20;
// Your code here

Need a hint?

Declare sold with the value 5 using let.

3

Update stock using assignment operators

Use the assignment operator -= to subtract sold from each of the variables apples, oranges, and bananas.

Javascript

let apples = 50;
let oranges = 30;
let bananas = 20;
let sold = 5;
// Your code here

Need a hint?

Use variable -= sold; to reduce each fruit's stock.

4

Print the updated stock values

Use console.log to print the values of apples, oranges, and bananas separated by spaces.

Javascript

let apples = 50;
let oranges = 30;
let bananas = 20;
let sold = 5;
apples -= sold;
oranges -= sold;
bananas -= sold;
// Your code here

Need a hint?

Use console.log(apples, oranges, bananas); to print the values separated by spaces.