How to use Operator
Describes the operators in JavaScript.
There are various operators in JavaScript. Each operator has several roles, including value assignment, operation, and comparison. This document describes several frequently used operators.
Operator Allocation
"=" represented by and is used to assign values to .
const variable = "redbrick"
Arithmetic Operator
Operators used in arithmetic operations such as addition, subtraction, and multiplication.
const num1 = 1;
const num2 = 2;
console.log(num1 + num2); // 3
console.log(num1 - num2); // -1
console.log(num1 / num2); // 0.5
console.log(num1 \* num2); // 2Comparison Operator
Use to compare values. It is evaluated as true or false.
const num1 = 1;
const num2 = 2;
const num3 = 2;
// Equal
console.log(num1 === num2); // false​
// Not Equal
console.log(num1 !== num2); // true
// Greater and Less
console.log(num1 > num2); // false
console.log(num1 < num2); // true
// Greater and Less and Equal
console.log(num1 >= num2); // false
console.log(num2 <= num3); // trueLogical Operator
The operator used to determine AND, OR, and NOT logic intervals. Evaluate the Boolean value and return the Boolean value.
const x = true;
const y = false;
// AND
console.log(x && y); // false
// OR
console.log(x || y); // true
// NOT
console.log(!x); // false
console.log(!y); // true