Filter() does not work for an object about collect.js HOT 1 CLOSED

    const objectCollection = collect({
      key: 'value',
      foo: 'bar'
    });

    const objectFiltered = objectCollection.filter(function(item, key) {
      return key === 'foo';
    });

    expect(objectFiltered.all()).to.eql({foo:'bar'});
    
    expect(objectCollection.all()).to.eql({key:'value',foo:'bar'});