PRIME NO TEST NOT OPTIMIZED

by bhupendra negi

JavaScript

// function to check executime time check in js

function Primes() {
  this.prime_count = 0;
  this.primes = new Array(25000);
  this.getPrimeCount = function() { return this.prime_count; }
  this.getPrime = function(i) { return this.primes[i]; }
  this.addPrime = function(i) {
    this.primes[this.prime_count++] = i;
  }

  this.isPrimeDivisible = function(candidate) {
    for (var i = 1; i <= this.prime_count; ++i) {
      if ((candidate % this.primes[i]) == 0) return true;
    }
    return false;
  }
};

function main() {
   // STARTING TIMER  
 var startTime = new Date().getTime();   
  p = new Primes();
  var c = 1;
  while (p.getPrimeCount() < 25000) {
    if (!p.isPrimeDivisible(c)) {
      p.addPrime(c);
    }
    c++;
  }
    // END TIMER
    console.log(p.getPrime(p.getPrimeCount()-1));
    var endTime = new Date().getTime();
    console.log("time elapsed in ms: " + (endTime - startTime) + "ms");
}

main();