This guide introduces operators in JavaScript and how they help us work with variables and values. Operators make JavaScript powerful by helping us work with values in different ways. Try using these operators to see what they can do!
JavaScript Operators
Types of JavaScript Operators
Operators perform tasks like math operations and comparisons. Here are some main types:
1. Arithmetic Operators
These do math operations:
+(addition)-(subtraction)*(multiplication)/(division)%(modulus, remainder)
let x = 10;
let y = 5;
console.log(x + y); // Output: 15
console.log(x - y); // Output: 5
console.log(x * y); // Output: 50
console.log(x / y); // Output: 2
console.log(x % y); // Output: 0
2. Comparison Operators
These operators compare values and return true or false:
==(equal to)!=(not equal to)>(greater than)<(less than)>=(greater than or equal to)<=(less than or equal to)
let a = 10;
let b = 20;
console.log(a == b); // Output: false
console.log(a != b); // Output: true
console.log(a < b); // Output: true
3. Logical Operators
Logical operators combine multiple conditions:
&&(AND) - true if both conditions are true||(OR) - true if at least one condition is true!(NOT) - inverts true to false and false to true
let hasLicense = true;
let hasCar = false;
console.log(hasLicense && hasCar); // Output: false
console.log(hasLicense || hasCar); // Output: true
console.log(!hasCar); // Output: true
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