JSFiddle - React, Tailwind, and code Playground
JavaScript
var x = 1;
var y = 2;
var sum = 0;
var limit = 10000;
var evensum = 2;
while ((x + y) < limit) {
sum = x + y;
x = y;
y = sum;
if (sum % 2 === 0) {
evensum += sum;
}
console.log(evensum);
}