list.assign(newItems)

If newItems is list like the values in newItems will replace the indexed value in the list. For example:

import { DefineList } from "can";

const list = new DefineList(["A","B"]);

list.assign( ["a"] );
console.log( list.serialize() ); //-> ["a","B"]

NOTICE: .assign() will not remove properties in the list that have indexes greater than or equal to the newItem's length. Use .update() to replace all of a list's values.

If newItems is an object, the object's properties will be added as properties to the list. For example:

import { DefineList } from "can";

const list = new DefineList(["A","B"]);

list.assign( {count: 1000, skip: 2} );
console.log( list.count ); //-> 1000