JSFiddle - React, Tailwind, and code Playground
HTML
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>
JavaScript
var objects =
{
0: {"filter": "filter-1", "value":"value-1"},
1: {"filter": "filter-1", "value":"value-2"},
2: {"filter": "filter-2", "value":"value-3"},
3: {"filter": "filter-3", "value":"value-4"}
}
var result = _.groupBy(objects,"filter")
console.log(result)