How to use Immutable toolset?

[fedorinoGore]

Hi. Im just started to use this library and a little bit confused. At first look it has some powerfull tools - like replace, without, etc. But while trying to work with a real data model - I just cant figured out how to use those utilities for data model manipulations. For example. Very common task, I believe. Have a store with object bundles in it. Looks like

bundles: {
count: 12,
items: [ {
  name: 'some name',
  id: '213123123',
  field: 'sdfdsf',
  children: []
}, {}, {} ...]
}

So I want to change some of the properties in one of the bundle.items array. How to do this smooth and beautifull using Immutable tooling without calling lodash or underscore for help?

[LukeusMaximus]

To perform a modification you can use setIn() to achieve this:

bundles = Immutable.setIn(bundles, ["items", 0, "name"], "new name")

will give:

bundles: {
count: 12,
items: [ {
  name: 'new name',
  id: '213123123',
  field: 'sdfdsf',
  children: []
}, {}, {} ...]
}