Subscribes to the stores change event, that is emitted when the store updates or replaces its state.
React Component
When used with React the react component mixin handles binding and unbinding stores and actions, see the Flux property of the mixin for more information.
var context = fluxapp.getContext();
var store = context.getStore('name');
function onChange(state) {
// state on store 'name' was changed
}
store.addChangeListener(onChange);
On to removeChangeListener(cb)