id attribute is not set if it is 0

test with turf.lineString(<coords>,{},{id:0}) on v.5.1.6

if id is 0 the id field is missing

[djbusstop]

I investigated this issue, and it’s solved in 6.2.0-alpha.1.

To test, I added an id of 0 to the linestring used in the unit tests. Here’s the created feature object with the id attached:

{
  type: 'Feature',
  id: 0,
  properties: { name: 'test line' },
  geometry: { type: 'LineString', coordinates: [ [Array], [Array] ] }
}

If this needs more work, I can be involved 😃

[mfedderly]

Sounds like this is fixed in 6.2.0 and above.