Some images generated are repeated

[nicolasvegaabril]

The code isn't checking for repeated variations correctly

[nicolasvegaabril]

I've created a PR with a fix

[tylerjharden]

Would you consider writing a test for this to demonstrate the PR fix?

[shpun817]

I've created a PR with uniqueness checking at the end.

[lbxa]

In regards to this issue lines 75-80 should be changed to

if (takenFaces[face]) {
    createImage(); 
  } else {
    const name = getRandomName();
    console.log(name);
    takenFaces[face] = face;

to not use face[takenFaces] = face. Looks like this error is coming from incorrectly using an object instance to index an array...