lint: remove unnecessary type assertion

.changeset/warm-pandas-retire.md

@@ -0,0 +1,5 @@
+---
+'@xyflow/react': patch
+---
+
+lint: remove unnecessary type assertion

packages/react/src/components/BatchProvider/index.tsx

@@ -35,7 +35,7 @@ export function BatchProvider<NodeType extends Node = Node, EdgeType extends Edg
      * this queue is a relatively hot path so we'd like to avoid the overhead of
      * array methods where we can.
      */
-    let next = nodes as NodeType[];
+    let next = nodes;
     for (const payload of queueItems) {
       next = typeof payload === 'function' ? payload(next) : payload;
     }
@@ -56,7 +56,7 @@ export function BatchProvider<NodeType extends Node = Node, EdgeType extends Edg
   const edgeQueueHandler = useCallback((queueItems: QueueItem<EdgeType>[]) => {
     const { edges = [], setEdges, hasDefaultEdges, onEdgesChange, edgeLookup } = store.getState();
 
-    let next = edges as EdgeType[];
+    let next = edges;
     for (const payload of queueItems) {
       next = typeof payload === 'function' ? payload(next) : payload;
     }

packages/react/src/container/ZoomPane/index.tsx

@@ -95,7 +95,7 @@ export function ZoomPane({
         },
       });
 
-      const { x, y, zoom } = panZoom.current!.getViewport();
+      const { x, y, zoom } = panZoom.current.getViewport();
 
       store.setState({
         panZoom: panZoom.current,

packages/react/src/hooks/useReactFlow.ts

@@ -95,7 +95,7 @@ export function useReactFlow<NodeType extends Node = Node, EdgeType extends Edge
       setNodes((prevNodes) =>
         prevNodes.map((node) => {
           if (node.id === id) {
-            const nextNode = typeof nodeUpdate === 'function' ? nodeUpdate(node as NodeType) : nodeUpdate;
+            const nextNode = typeof nodeUpdate === 'function' ? nodeUpdate(node) : nodeUpdate;
             return options.replace && isNode(nextNode) ? (nextNode as NodeType) : { ...node, ...nextNode };
           }
 
@@ -112,7 +112,7 @@ export function useReactFlow<NodeType extends Node = Node, EdgeType extends Edge
       setEdges((prevEdges) =>
         prevEdges.map((edge) => {
           if (edge.id === id) {
-            const nextEdge = typeof edgeUpdate === 'function' ? edgeUpdate(edge as EdgeType) : edgeUpdate;
+            const nextEdge = typeof edgeUpdate === 'function' ? edgeUpdate(edge) : edgeUpdate;
             return options.replace && isEdge(nextEdge) ? (nextEdge as EdgeType) : { ...edge, ...nextEdge };
           }
 
@@ -207,7 +207,7 @@ export function useReactFlow<NodeType extends Node = Node, EdgeType extends Edge
         return (nodes || store.getState().nodes).filter((n) => {
           const internalNode = store.getState().nodeLookup.get(n.id);
 
-          if (internalNode && !isRect && (n.id === nodeOrRect!.id || !internalNode.internals.positionAbsolute)) {
+          if (internalNode && !isRect && (n.id === nodeOrRect.id || !internalNode.internals.positionAbsolute)) {
             return false;
           }
 

packages/react/src/hooks/useResizeHandler.ts

@@ -16,7 +16,7 @@ export function useResizeHandler(domNode: MutableRefObject<HTMLDivElement | null
       if (!domNode.current) {
         return false;
       }
-      const size = getDimensions(domNode.current!);
+      const size = getDimensions(domNode.current);
 
       if (size.height === 0 || size.width === 0) {
         store.getState().onError?.('004', errorMessages['error004']());

packages/react/src/store/index.ts

@@ -228,7 +228,7 @@ const createStore = ({
 
         if (multiSelectionActive) {
           const nodeChanges = selectedNodeIds.map((nodeId) => createSelectionChange(nodeId, true));
-          triggerNodeChanges(nodeChanges as NodeSelectionChange[]);
+          triggerNodeChanges(nodeChanges);
           return;
         }
 
@@ -240,7 +240,7 @@ const createStore = ({
 
         if (multiSelectionActive) {
           const changedEdges = selectedEdgeIds.map((edgeId) => createSelectionChange(edgeId, true));
-          triggerEdgeChanges(changedEdges as EdgeSelectionChange[]);
+          triggerEdgeChanges(changedEdges);
           return;
         }
 
@@ -265,8 +265,8 @@ const createStore = ({
         });
         const edgeChanges = edgesToUnselect.map((edge) => createSelectionChange(edge.id, false));
 
-        triggerNodeChanges(nodeChanges as NodeSelectionChange[]);
+        triggerNodeChanges(nodeChanges);
-        triggerEdgeChanges(edgeChanges as EdgeSelectionChange[]);
+        triggerEdgeChanges(edgeChanges);
       },
       setMinZoom: (minZoom) => {
         const { panZoom, maxZoom } = get();
@@ -292,11 +292,11 @@ const createStore = ({
         const { edges, nodes, triggerNodeChanges, triggerEdgeChanges } = get();
 
         const nodeChanges = nodes.reduce<NodeSelectionChange[]>(
-          (res, node) => (node.selected ? [...res, createSelectionChange(node.id, false) as NodeSelectionChange] : res),
+          (res, node) => (node.selected ? [...res, createSelectionChange(node.id, false)] : res),
           []
         );
         const edgeChanges = edges.reduce<EdgeSelectionChange[]>(
-          (res, edge) => (edge.selected ? [...res, createSelectionChange(edge.id, false) as EdgeSelectionChange] : res),
+          (res, edge) => (edge.selected ? [...res, createSelectionChange(edge.id, false)] : res),
           []
         );
 

tooling/eslint-config/src/index.js

@@ -29,4 +29,15 @@ module.exports = {
   rules: {
     '@typescript-eslint/no-non-null-assertion': 'off',
   },
+  overrides: [
+    {
+      files: ['**/*.{ts,tsx,cts,mts}'],
+      parserOptions: {
+        projectService: true,
+      },
+      rules: {
+        '@typescript-eslint/no-unnecessary-type-assertion': 'error',
+      },
+    },
+  ],
 };