topic Re: Poor Performance with Client-side FeatureLayer Query in ArcGIS JavaScript Maps SDK Questions

Poor Performance with Client-side FeatureLayer Query

AdamDrackley — Wed, 26 Jul 2023 20:07:31 GMT

Has anyone else encountered poor performance when performing a simple attribute query against a FeatureLayer object with client-side features? You'd think that these queries would return results immediately because all the features are already in memory, but I'm finding that a loop which performs an attribute query against a client-side FeatureLayer about 800 times is taking minutes to complete. I'll try to put together a codepen to illustrate this, but just knowing that I'm not alone in seeing this would be great.

Re: Poor Performance with Client-side FeatureLayer Query

UndralBatsukh — Wed, 26 Jul 2023 20:29:00 GMT

Hi there,

Can you please provide a reproducible case? Without a repro case, it is impossible to say why.

Re: Poor Performance with Client-side FeatureLayer Query

AdamDrackley — Wed, 26 Jul 2023 22:00:35 GMT

Taking another look at my code, this may be because of some very inefficient looping. Feel free to remove this post.