Remove feature from featureCollection turf.js

Question

I have a featureCollection. Each element has properties which again has the entry arr. arr either contains [], or ["a",.... n]. I want to remove every element from the featureCollection where arr.length !== 0.

How would I do that in turf.js (version 5.1.6)? Is there a inherent function for that? Or would I have to use simple dict mutation, native to JS?

Answer 1

As of v5.1.6 of TurfJS there is no function for filtering featureCollections by feature properties in TurfJS.

For this sort of thing just use native javascript functions like array filter method as suggested by @Rajesh.

var matchingFeatures = featureCollection.features.filter(function (feature){ 
   return feature.properties.arr.length === 0 
})