planning

node_modules/@emotion/memoize/src/index.ts

@@ -0,0 +1,8 @@
+export default function memoize<V>(fn: (arg: string) => V): (arg: string) => V {
+  const cache: Record<string, V> = Object.create(null)
+
+  return (arg: string) => {
+    if (cache[arg] === undefined) cache[arg] = fn(arg)
+    return cache[arg]
+  }
+}