Contents

'use strict';

function newArrayWithRange(first, last) {
  var i;
  var array = [];
  for ( i = first; i <= last; i++ ) {
    array.push(i);
  }
  return array;
}

function indivisibleBy(value) {
  return value % this !== 0;
}

function sieve(n) {
  var prime;
  var possibilities;
  var primes = [];

  possibilities = newArrayWithRange(2, n);

  do {
    prime = possibilities.shift();
    primes.push(prime);
    possibilities = possibilities.filter( indivisibleBy, prime );
  } while (possibilities.length > 0);

  return primes;
}

module.exports = function (n) {
  this.primes = sieve(n);
};

Version data entries

119 entries across 119 versions & 1 rubygems

Version	Path
trackler-2.2.1.119	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.118	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.117	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.116	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.115	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.114	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.113	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.111	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.110	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.109	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.108	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.107	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.106	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.105	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.104	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.103	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.102	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.101	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.100	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.99	tracks/javascript/exercises/sieve/example.js