TypeScript!

ui/components/container.ts

@@ -0,0 +1,28 @@
+import { ClosureComponent, Component } from "mithril";
+import { m } from "../components";
+import * as store from "../store";
+
+const component: ClosureComponent = (): Component => {
+  return {
+    view: vnode => {
+      if (vnode.attrs["filter"]) {
+        if (
+          !store.evaluateExpression(
+            vnode.attrs["filter"],
+            vnode.attrs["device"]
+          )
+        )
+          return null;
+      }
+
+      const children = Object.values(vnode.attrs["components"]).map(c => {
+        if (typeof c !== "object") return `${c}`;
+        return m(c["type"], c);
+      });
+      if (vnode.attrs["element"]) return m(vnode.attrs["element"], children);
+      else return children;
+    }
+  };
+};
+
+export default component;