Method update

dom/src/IsolateModule.ts:99–120

(oldVNode: VNode, vNode: VNode)

      },

      update(oldVNode: VNode, vNode: VNode) {
        const {data: oldData = {}} = oldVNode;
        const {elm, data = {}} = vNode;
        const oldFullScope: string = (oldData as any).isolate || '';
        const fullScope: string = (data as any).isolate || '';

        // Same element, but different scope, so update the data structures
        if (fullScope && fullScope !== oldFullScope) {
          if (oldFullScope) { self.elementsByFullScope.delete(oldFullScope); }
          self.elementsByFullScope.set(fullScope, elm as Element);
          const delegators = self.delegatorsByFullScope.get(oldFullScope);
          if (delegators) {
            self.delegatorsByFullScope.delete(oldFullScope);
            self.delegatorsByFullScope.set(fullScope, delegators);
          }
        }
        // Same element, but lost the scope, so update the data structures
        if (oldFullScope && !fullScope) {
          self.elementsByFullScope.delete(oldFullScope);
          self.delegatorsByFullScope.delete(oldFullScope);
        }
      },

      destroy(vNode: VNode) {
        self.cleanupVNode(vNode);