map.assignDeep(props)

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

Properties not in props will not be changed.

import {DefineMap, DefineList} from "can";

const MyMap = DefineMap.extend({
  list: DefineList,
  name: "string"
});

const obj = new MyMap({
  list: ["1", "2", "3"],
  foo: "bar"
});

obj.assignDeep({
  list: ["first"]
});

console.log( obj.serialize() ); //-> { foo: "bar", list: ["first", "2", "3"] }