chore(examples): use new api

example/src/NodeTypesObjectChange/index.tsx

@@ -0,0 +1,81 @@
+import { useState, CSSProperties, FC } from 'react';
+
+import ReactFlow, {
+  addEdge,
+  Node,
+  Position,
+  Connection,
+  Edge,
+  NodeProps,
+  NodeTypesType,
+  useNodesState,
+  useEdgesState,
+} from 'react-flow-renderer';
+
+const initialNodes: Node[] = [
+  {
+    id: '1',
+    sourcePosition: Position.Right,
+    type: 'input',
+    data: { label: 'Input' },
+    position: { x: 0, y: 80 },
+  },
+  {
+    id: '2',
+    type: 'a',
+    sourcePosition: Position.Right,
+    targetPosition: Position.Left,
+    data: { label: 'A Node' },
+    position: { x: 250, y: 0 },
+  },
+];
+
+const buttonStyle: CSSProperties = { position: 'absolute', right: 10, top: 30, zIndex: 4 };
+
+const nodeStyles: CSSProperties = { padding: '10px 15px', border: '1px solid #ddd' };
+
+const NodeA: FC<NodeProps> = () => {
+  return <div style={nodeStyles}>A</div>;
+};
+
+const NodeB: FC<NodeProps> = () => {
+  return <div style={nodeStyles}>B</div>;
+};
+
+type NodeTypesObject = {
+  [key: string]: NodeTypesType;
+};
+
+const nodeTypesObjects: NodeTypesObject = {
+  a: {
+    a: NodeA,
+  },
+  b: {
+    b: NodeB,
+  },
+};
+
+const NodeTypeChangeFlow = () => {
+  const [nodeTypesId, setNodeTypesId] = useState<string>('a');
+  const [nodes, setNodes, onNodesChange] = useNodesState(initialNodes);
+  const [edges, setEdges, onEdgesChange] = useEdgesState([]);
+  const onConnect = (params: Connection | Edge) => setEdges((eds) => addEdge(params, eds));
+  const changeType = () => setNodeTypesId((nt) => (nt === 'a' ? 'b' : 'a'));
+
+  return (
+    <ReactFlow
+      nodes={nodes}
+      edges={edges}
+      onNodesChange={onNodesChange}
+      onEdgesChange={onEdgesChange}
+      onConnect={onConnect}
+      nodeTypes={nodeTypesObjects[nodeTypesId]}
+    >
+      <button onClick={changeType} style={buttonStyle}>
+        change type
+      </button>
+    </ReactFlow>
+  );
+};
+
+export default NodeTypeChangeFlow;