list.assignDeep(newItems)

Similar to .assign(), .assignDeep() will overwrite values within list with values from newItems. Where assign() will replace values or properties one level deep, .assignDeep() will overwrite values or properties on objects and lists recursively.

For example, the following only assigns justin's age to 36:

import { DefineMap, DefineList } from "can";

const justin = new DefineMap({name: "Justin", age: 35}),
      payal = new DefineMap({name: "Payal", age: 35});

const people = new DefineList([justin, payal]);

people.assignDeep([
  {age: 36}
]);

console.log(people.serialize()) //-> [
//   {name: "Justin", age: 36},
//   {name: "Payal", age: 35}
// ]