Function sortBy throws MixedTypeError if value in sorted column is null

Hi team,

I’m using dataframe-js v1.3.2 and facing an error when trying to sort dataframe by column that contains null. Please see the following example:

let result = new DataFrame([
  {Name: 'Peter', Age: 16},
  {Name: 'Denis', Age: null}
], ['Name', 'Age']);

result.sortBy('Age')

Please let me know if you are going to fix this in the nearest release. Or please share some thoughts on a workaround. PS. in the project value really needs to stay null so please do not propose change null to zero 😃

[Gmousse]

Hi @episodeyang, Indeed it’s a good idea. I will see to add an additionnal parameter in order to place null, undefined or NaN values first or last.

I will try it today. I hope a release on the 1.4.0.

Stay tuned.

[Gmousse]

Released in 1.4.0