Move to Typescript.

src/Maze.tsx

@@ -0,0 +1,22 @@
+import Cell from "./Cell.tsx";
+
+
+export default function Maze({state, dispatch}) {
+    if (!state.maze) {
+        return <div>No valid maze.</div>
+    }
+
+    let maze: JSX.Element[] = [];
+    for (let y = 0; y < state.maze.height; y++) {
+        let row: JSX.Element[] = [];
+        for (let x = 0; x < state.maze.width; x++) {
+            row.push(<Cell key={`${x}x${y}`} x={x} y={y} state={state} dispatch={dispatch}/>)
+        }
+        maze.push(<div key={`r${y}`} className={"row"}>{row}</div>);
+    }
+    return (
+        <div className={"maze"}>
+            {maze}
+        </div>
+    );
+}