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-2.2.1.180	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.179	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.178	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.177	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.176	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.175	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.174	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.173	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.172	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.171	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.170	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.169	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.167	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.166	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.165	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.164	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.163	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.162	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.161	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.160	tracks/javascript/exercises/sieve/example.js