The form example can be written this way to avoid having to register onChange on every field (within the same form):

    <form onChange={this.inputHandler}>
      ...
      <input type="text" name="blah" value={this.state.blah}/>
      ...
    </form>
    
    inputHandler: function(event) {  
      actions.propagateValue({
        field: event.target.name,
        value: event.target.value
      });
    }