Javascript ES5 GOL

gol.js

function flat(arr){ 
  return [].concat.apply([], arr);
}

//can be created by simple array
function nearNeighbours() {
  var all = [-1, 0, 1].map(function (y) {
    return [-1, 0, 1].map(function (x) {      
      return [(x), (y)];
    });
  });
  return flat(all).filter(function (i) {
    return i[0] !== 0 || i[1] !== 0;
  });
}

function neighbours (x, y) {
  return nearNeighbours().map(function (i) {
    return [(x + i[0]), (y + i[1])];    
  });
}

function contain(c, gen) {
  return gen.some(function(f){ 
    return (f[0] === c[0] && f[1] === c[1])
  });
}

function liveNeighbours(pos, gen) {
  return neighbours(pos[0], pos[1]).reduce(function(p, c){
    var found = contain(c, gen);
    p = p + (found ? 1 : 0);
    return p;
  },0);
}

function rule(liveNeighbours, isAlive) {
  return liveNeighbours == 3 || (liveNeighbours == 2 && isAlive);  
}

function expand(gen){
  return gen.reduce(function(p, c) {
    neighbours(c[0],c[1]).map(function(i){
      if (!contain(i, p)) p.push(i);
    });    
    return p;
  },[]);
}

function gol(gen){
  var all = expand(gen);
  return all.reduce(function(p, c) {
    var n = liveNeighbours(c, gen);
    var found = contain(c, gen);   
    if (rule(n, found)) p.push(c);
    return p;
  },[]);
}

var blinker = [[0,0], [0,1], [0,2]];

gol(gol(blinker));