Can't access cluster leaves about supercluster

[jameslin123]

Looking into the 'getLeaves' method, it expects a 'properties' field for every child:

var props = children[i].properties;
 if (props.cluster) { ...

But a leaf child doesn't get initialized with the "properties" field, so props.cluster would error out.

Perhaps the proper fix is to create such a field for the 'points' inside the index loader.

As a workaround, we can mock that field in the "points" array which we feed to index.load():

const points = items.map(
            (item) => {
                return {
                    geometry: item.geometry,
                    item: item,

                    // Workaround: getLeaves expects this field for a leaf node.
                    properties: {
                        cluster: false
                    }
                };
            });

 index.load(points);

The getLeaves method returns leaf nodes with this workaround.

[jzzfs]

@jameslin123 thank you! This solved my problem.