Connector should use deepEqual

I have been hunting a bug that turns out to have been caused by the fact that Connector shallowly compares the current slice to the next. The diffs buried deep in a slice doesn’t trigger updates in the connected components because of this. For example:

Before:

{
   MapReducer: {
      layers: []
   }
}

After:

{
   MapReducer: {
      layers: [{id: 1, name: 'my-layer'}]
   }
}

…no updates.

I know I can do @connect(state => state.MapReducer) but I also want the component to receive the state from other reducers. Any tips for me?

[gaearon]

For example

function (state, action) {
  state.xxx = yyy;
}

is wrong,

// ES6
function (state, action) {
  return Object.assign({}, state, { xxx: yyy });
}

// ES7 spread syntax
function (state, action) {
  return { ...state, xxx: yyy );
}

is correct.

[gaearon]

No problem!