topic Re: Getting a column from featurelayer attribute table as an array in ArcGIS JavaScript Maps SDK Questions

Getting a column from featurelayer attribute table as an array

jerry1 — Mon, 04 Oct 2021 07:21:23 GMT

New to ArcGIS API for Javascript, so apologies if this is a very basic/beginner question.

I have a feature table with a a few columns in it's attribute table, one of which is the 'date' column. Is it possible for me to extract just all the values the 'date' column, preferably as an array?

Thanks!

Re: Getting a column from featurelayer attribute table as an array

Kishore — Mon, 04 Oct 2021 09:43:05 GMT

Hi Jerry,

Use query feature layer and define your where condition as 1=1 and outFields is your required fields.

Please refer to the link: https://developers.arcgis.com/javascript/latest/query-a-feature-layer-sql/

Thank you.

Re: Getting a column from featurelayer attribute table as an array

jerry1 — Mon, 04 Oct 2021 10:18:19 GMT

I finally got it to work, thank you so much!

The issue with my code was that my where condition was set to "date != '' ", which didn't work at all, while the 1=1 condition works.

Re: Getting a column from featurelayer attribute table as an array

Kishore — Mon, 04 Oct 2021 11:09:10 GMT

Grate.

You can also try with SQL statements such as "date IS NOT NULL".