hunk.code_window:   };
   }
   export function indexArray<T, U>(
     list: () => T[],
     mapFn: (v: () => T, i: number) => U,
     options: { fallback?: () => any } = {}
   ): () => U[] {
  
hunk.labels: keep keep keep keep replace keep keep keep
hunk.after_edit:   list: () => readonly T[],
  
hunk.file_path: packages/solid/src/reactive/array.ts
hunk.type: replace
file: node_modules/
  dist/
  lib/
  .vscode/
  coverage/
  types/