queryLogic.intersection(a, b)

Returns a query that represents the intersection of queries A and B. In set theory, an intersection is represented by A ∩ B.

import {QueryLogic} from "can";

const queryLogic = new QueryLogic();

const filter = queryLogic.intersection(
  { filter: {completed: true, due: "tomorrow"} },
  { filter: {completed: true, type: "critical"} }
);
console.log( filter ); //-> {filter: {completed: true, due: "tomorrow", type: "critical"}}