src/Ren.js
function update(v, i, params, {oldValue}) {
      switch (i) {
      case 'children': _unobserveChildren(oldValue); _observeChildren(v); break;
      case 'attrs':    _unobserveAttrs   (oldValue); _observeAttrs   (v); break;
      }
    }
function update(v, i, params, {oldValue}) {
      switch (i) {
      case 'children': _unobserveChildren(oldValue); _observeChildren(v); break;
      case 'attrs':    _unobserveAttrs   (oldValue); _observeAttrs   (v); break;
      }
    }
function update ( v , i , params , { oldValue } ) { switch ( i ) { case 'children' : _unobserveChildren ( oldValue ) ; _observeChildren ( v ) ; break ; case 'attrs' : _unobserveAttrs ( oldValue ) ; _observeAttrs ( v ) ; break ; } }
When parameters change, tear down and resetup observers.
When parameters change tear down and resetup observers .