get uniq Objects array from an array that contain some objects which has same property by es6 systax

uniqObjectsArray.js

export default function uniqObjectsArray(objects) {
  /*
  objects is an array of Object
  */
  let keys = [];
  let arr = [];
  arr = objects.filter(row => {
    let key = JSON.stringify(row);
    if (!keys[key]) {
      keys[key] = '-';
      return true;
    }
  });

  return arr;
}