Fixing an Error

lineColors.js

/*
Adicione o lodash
<script src="lodash.js"></script>

*/

function LineColors(dados){
  var o = {};
  _.forEach(dados, function(d){
      var n = {};
      _.merge(n, _.zipObject(d.datasets[i].fillColor,cores[i]));
      _.merge(n, _.zipObject(d.datasets[i].strokeColor,cores[i]));
      _.merge(n, _.zipObject(d.datasets[i].pointColor,cores[i]));
      _.merge(o, n);
  });
  
  return o;
}

console.log(o);