queryLogic.union(queryA, queryB)

Returns a query that represents the union queryA and queryB. In set theory, a union is represented by A ∪ B.

import {QueryLogic} from "can";

const queryLogic = new QueryLogic();

const myUnion = queryLogic.union(
  { filter: {completed: true} },
  { filter: {completed: false} }
);
// using JSON.stringify to show full object on codepen
console.log( JSON.stringify(myUnion) ); //-> "{ filter: {completed: {$in: [true, false]}} }"