Project Euler Problem 2 - Fibonacci Question

Hi All! This is my first post here! I shall share a short post on the solution to the Fibonacci Problem by Project Euler. This is considered a common beginner level question to practice basic 'for loop'.

The Question is as such:

Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be:

1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ...

By considering the terms in the Fibonacci sequence whose values do not exceed four million, find the sum of the even-valued terms.

Posting my solution (in JavaScript) here for sharing!

let n1 = 0, n2 = 1, nextNum, fiboSum = 0, fiboArr = []; for (let i = 1; i <= 100; i++) { // console.log(n1); //keep logging new n1 fiboArr.push(n1); nextNum = n1 + n2; //get nextNum n1 = n2; //update prev n2 as new n1 n2 = nextNum; //update nextNum as new n2 } //console.log(fiboArr); for (let i of fiboArr) { if (i % 2 === 0 && i < 4000000) { console.log(i); fiboSum = fiboSum + i; } } console.log(`Sum of even-valued terms: ${fiboSum}`); 

You will see this in your terminal:

0 2 8 34 144 610 2584 10946 46368 196418 832040 3524578 Sum of even-valued terms: 4613732 

For those interested to solve more challenging questions, you may refer to this link for more questions. Click Here. Cheers!