JSFiddle - React, Tailwind, and code Playground
HTML
<textarea id="result"></textarea>
JavaScript
var aaa = [
{name: "AAA", id: 845},
{name: "BBB", id: 839},
{name: "CCC", id: 854}
];
var bbb = [
{id: 839},
{id: 854}
];
var ids = {};
_.each(bbb, function (bb) { ids[bb.id] = true; });
var out = _.filter(aaa, function(val){
return ids[val.id];
}, bbb);
document.getElementById('result').value = JSON.stringify(out);