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-2.2.1.139	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.138	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.137	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.136	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.135	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.134	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.133	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.132	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.131	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.130	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.129	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.128	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.127	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.126	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.125	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.124	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.123	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.122	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.121	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.120	tracks/javascript/exercises/sieve/example.js