Add nodes with render and transform

src/nodes/ObjectNode.ts

@@ -0,0 +1,22 @@
+import { AbstractNode, NodeChildren, NodeMods } from './AbstractNode'
+
+export class ObjectNode extends AbstractNode<any> {
+  private fields: NodeChildren
+
+  constructor(fields: NodeChildren, mods?: NodeMods<any>) {
+    super(mods)
+    this.fields = fields
+    Object.values(fields).forEach(child => {
+      child.setParent(this)
+    })
+  }
+
+  render(field: string, value: any) {
+    value = value || {}
+    return `<span>${field}:</span><div>
+      ${Object.keys(this.fields).map(f => {
+        return '> ' + this.fields[f].render(f, value[f])
+      }).join('<br>')}
+    </div>`
+  }
+}