Here’s a way to group your collection data via exact attribute values using BackboneJS and UnderscoreJS.

this.categories = _.groupBy(this.collection.models, function(row) {
	return row.attributes.{attribute you want to group by};

this.categories should be a new object with your data grouped by the attribute you selected.

The tricky part was returning back the attributes of each model by going row.attributes.

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