{"ScriptPreparationCode":"var source = [{\r\n id: 48\r\n}, {\r\n id: 53\r\n}];\r\nvar target = [{\r\n id: 48\r\n}, {\r\n id: 11\r\n}];","TestCases":[{"Name":"differenceBy","Code":"const missingID = _(source).differenceBy(target, \u0027id\u0027).valueOf();\r\nconst result = target.concat(missingID);","IsDeferred":false},{"Name":"unionBy","Code":"const result = _(target).unionBy(source, \u0027id\u0027).valueOf();","IsDeferred":false}]}