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-2.2.1.78	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.77	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.76	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.75	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.74	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.73	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.72	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.71	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.70	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.69	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.68	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.67	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.66	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.65	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.64	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.63	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.62	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.61	tracks/javascript/exercises/sieve/example.js
trackler-2.2.1.60	tracks/javascript/exercises/sieve/example.js