Variables and Operators

 Variables and Operators

JavaScript is a programming language that uses variables and operators to manipulate and store data.

Variables are containers used to store data values. They can be declared using the var, let, or const keyword, followed by the variable name.

Operators, on the other hand, are symbols or keywords used to perform operations on data. They can be used to perform arithmetic, comparison, logical, and other operations.

Arithmetic operators include 

+ (addition), 

- (subtraction), 

* (multiplication), 

/ (division), 

and % (modulus)

Operators, on the other hand, are symbols or keywords used to perform operations on data. They can be used to perform arithmetic, comparison, logical, and other operations.

Arithmetic operators include 

+ (addition), 

- (subtraction), 

* (multiplication), 

/ (division), 

and % (modulus).

Comparison operators include 

== (equal to), 

!= (not equal to), 

< (less than), 

> (greater than), 

<= (less than or equal to), 

and >= (greater than or equal to).

Logical operators include 

&& (logical and), 

|| (logical or), 

and ! (logical not).

Example program to cover all the operators

// Declare and initialize some variables 

let a = 10; 

let b = 5; 

const PI = 3.14159; // Use arithmetic operators 

let sum = a + b; // sum is 15 

let difference = a - b; // difference is 5 

let product = a * b; // product is 50 

let quotient = a / b; // quotient is 2 

let remainder = a % b; // remainder is 0 

// Use comparison operators 

let isEqual = (a == b); // isEqual is false 

let isNotEqual = (a != b); // isNotEqual is true 

let isLessThan = (a < b); // isLessThan is false 

let isGreaterThan = (a > b); // isGreaterThan is true 

let isLessThanOrEqual = (a <= b); // isLessThanOrEqual is false 

let isGreaterThanOrEqual = (a >= b); // isGreaterThanOrEqual is true 

// Use logical operators 

let x = true; 

let y = false; 

let andResult = (x && y); // andResult is false 

let orResult = (x || y); // orResult is true 

let notResult = !x; // notResult is false 

// Print the results to the 

console console.log("Sum: " + sum); 

console.log("Difference: " + difference); 

console.log("Product: " + product); 

console.log("Quotient: " + quotient); 

console.log("Remainder: " + remainder); 

console.log("Is equal? " + isEqual); 

console.log("Is not equal? " + isNotEqual); 

console.log("Is less than? " + isLessThan); 

console.log("Is greater than? " + isGreaterThan); 

console.log("Is less than or equal? " + isLessThanOrEqual); 

console.log("Is greater than or equal? " + isGreaterThanOrEqual); 

console.log("Logical and: " + andResult); 

console.log("Logical or: " + orResult); 

console.log("Logical not: " + notResult);

Try it . . .