JavaScript Beginner Day 4: Conditions (if / else)

Goal of this Day

Today you will learn:

• How to make decisions in JavaScript
• Using if and else

By the end, you will be able to control the flow of your program based on conditions.

Step 1: What are Conditions?

Conditions allow your program to make decisions.

Example questions:

• Is someone an adult?
• Did a student pass a test?

Step 2: The if Statement

if checks if a condition is true.

let age = 20;

if (age >= 18) {
  console.log("Adult");
}

Step 3: if / else

else runs if the condition is false.

let age = 20;

if (age >= 18) {
  console.log("Adult");
} else {
  console.log("Minor");
}

Explanation:

• If the condition is true → first block runs
• If the condition is false → else block runs

Practice

let age = 20;

if (age >= 18) {
  console.log("Adult");
} else {
  console.log("Minor");
}

Task

Create a program that checks a score:

• If score > 50 → "Pass"
• Else → "Fail"

Example:

let score = 60;

if (score > 50) {
  console.log("Pass");
} else {
  console.log("Fail");
}