What are Operators?

In simple terms, an operator is a special symbol used to perform operations on values and variables.

For example, in 5 + 2, the + is the operator. It tells JavaScript: "Take these two numbers and add them together."

1. Arithmetic Operators (The Math Stuff)

These are the ones you already know from school. They allow you to perform basic calculations.

• + (Addition): Adds values.

• - (Subtraction): Subtracts values.

• * (Multiplication): Multiplies values.

• / (Division): Divides one value by another.

• % (Remainder/Modulo): Gives you what is left over after division.

Console Example:

let apples = 10;
let friends = 3;

console.log(apples + 5); // 15
console.log(apples * 2); // 20
console.log(apples % friends); // 1 (Because 3 goes into 10 three times, with 1 left over)

2. Assignment Operators

These are used to set or update the value of a variable.

• = : The basic assignment (Sets x to 5).

• += : Adds a value to the current variable and updates it.

• -= : Subtracts a value from the current variable and updates it.

Console Example:

let score = 10;
score += 5; // Same as: score = score + 5
console.log(score); // 15

3. Comparison Operators

We use these to compare two values. The result is always True or False.

• > and < : Greater than and less than.

• == : Equal to (checks the value only).

• === : Strict equal to (checks the value AND the data type).

The Big Difference: == vs ===

This is a common trap for beginners.

• 5 == "5" is true because JavaScript tries to be "helpful" and ignores that one is a number and one is text.

• 5 === "5" is false because they are different types. Always use === to avoid bugs!

4. Logical Operators

These help us combine multiple conditions together.

• && (AND): True only if both sides are true.

• || (OR): True if at least one side is true.

• ! (NOT): Flips the value (True becomes False).

Console Example:

let isSunny = true;
let hasFreeTime = true;

if (isSunny && hasFreeTime) {
    console.log("Go for a walk!"); 
}

---

Quick Summary Table

Category	Symbols	Use Case
Arithmetic	+, -, *, /, %	Doing math
Comparison	==, ===, >, <	Comparing values
Logical	&&, `
Assignment	=, +=, -=	Storing or changing values