snapshot of https://github.com/TanStack/query.git (main, 2026-09-16; blobs > 131072B omitted)

examples/lit/basic/config/port.d.ts

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+export const DEMO_PORT: number

examples/lit/basic/config/port.js

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+const DEFAULT_DEMO_PORT = 4173
+const envPort = process.env.DEMO_PORT
+
+function resolvePort() {
+  if (!envPort) {
+    return DEFAULT_DEMO_PORT
+  }
+
+  const parsedPort = Number.parseInt(envPort, 10)
+  const isValidPort =
+    Number.isInteger(parsedPort) && parsedPort > 0 && parsedPort <= 65535
+
+  if (!isValidPort) {
+    throw new Error(
+      `Invalid DEMO_PORT "${envPort}". Expected an integer between 1 and 65535.`,
+    )
+  }
+
+  return parsedPort
+}
+
+export const DEMO_PORT = resolvePort()