console.time('eventlooplag');
//event-loop timer phase
setTimeout(() =>console.timeEnd('eventlooplag'), 0);
/*blocking code, stalling event loop, delaying   the  execution of the setTimeout ie lag in the    event loop
*/
const min = 2;
const max = 2e6;
const primes = [];
function generatePrimes(start, range) {
  let isPrime = true;
  let end = start + range;
  for (let i = start; i < end; i++) {
    for (let j = min; j < Math.sqrt(end); j++) {
      if (i !== j && i%j === 0) {
        isPrime = false;
        break;
      }
    }
    if (isPrime) {
      primes.push(i);
    }
    isPrime = true;
  }
}
generatePrimes(min, max);