JavaScript Program to Find the Sum of Natural Numbers

In this example, we will learn to write a program that finds the sum of natural numbers in JavaScript.

The positive integers like 1,2,3---n are called natural numbers 

Step 1: we use for loop and add i to sum at each iteration.

finally we print sum

PROGRAM :

// Program to find sum of natural number

// sum upto n terms

let n=100;

let sum=0;

for(let i=1;i<=n;i++){

sum+=i

}

console.log('The sum of ',n,'natural numbers:', sum)

let n=100; let sum=0; for(let i=1;i<=n;i++){ sum+=i } console.log('The sum of ',n,'natural numbers:', sum)

OUTPUT :

Complexity

Time Complexity : O(N)
Space Complexity : O(1)