Nested conditional statements in Javascript - Mini Project: Build & Apply

Nested Conditional Statements

📖 Scenario: You are building a simple program to check the weather and temperature to decide what to wear.

🎯 Goal: Create a program that uses nested conditional statements to decide clothing advice based on weather and temperature.

📋 What You'll Learn

Create a variable weather with the exact value "rainy"

Create a variable temperature with the exact value 15

Use a nested if statement to check weather and then temperature

Print the exact advice string based on conditions

💡 Why This Matters

🌍 Real World

Weather apps and smart assistants use nested conditions to give advice based on multiple factors like weather and temperature.

💼 Career

Understanding nested conditional statements is essential for programming logic in many jobs like web development, app development, and automation.

1

Create weather and temperature variables

Create a variable called weather and set it to the string "rainy". Also create a variable called temperature and set it to the number 15.

Javascript

// Your code here

Need a hint?

Use let to create variables and assign the exact values.

2

Add a variable for warm temperature threshold

Create a variable called warmThreshold and set it to the number 20.

Javascript

let weather = "rainy";
let temperature = 15;
// Your code here

Need a hint?

This variable will help us decide if it is warm or cold.

3

Write nested if statements for clothing advice

Use a nested if statement: first check if weather is "rainy". Inside that, check if temperature is greater than warmThreshold. If yes, set a variable advice to "Take an umbrella but wear light clothes.". Otherwise, set advice to "Take an umbrella and wear a coat.". If weather is not "rainy", set advice to "No umbrella needed.".

Javascript

let weather = "rainy";
let temperature = 15;
let warmThreshold = 20;
// Your code here

Need a hint?

Remember to use === for comparison and nest the second if inside the first.

4

Print the clothing advice

Write a console.log statement to print the value of the variable advice.

Javascript

let weather = "rainy";
let temperature = 15;
let warmThreshold = 20;
let advice;
if (weather === "rainy") {
    if (temperature > warmThreshold) {
        advice = "Take an umbrella but wear light clothes.";
    } else {
        advice = "Take an umbrella and wear a coat.";
    }
} else {
    advice = "No umbrella needed.";
}
// Your code here

Need a hint?

Use console.log(advice); to print the advice.