1 files changed, 61 insertions, 1 deletions
diff --git a/op_crates/web/lib.deno_web.d.ts b/op_crates/web/lib.deno_web.d.ts
index d24a3b76f..102fbf718 100644
--- a/op_crates/web/lib.deno_web.d.ts
+++ b/op_crates/web/lib.deno_web.d.ts
@@ -1,6 +1,6 @@
 // Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
 
-/* eslint-disable @typescript-eslint/no-explicit-any */
+/* eslint-disable @typescript-eslint/no-unused-vars, @typescript-eslint/no-explicit-any, no-var */
 
 /// <reference no-default-lib="true" />
 /// <reference lib="esnext" />
@@ -235,3 +235,63 @@ declare const AbortSignal: {
   prototype: AbortSignal;
   new (): AbortSignal;
 };
+
+interface FileReaderEventMap {
+  "abort": ProgressEvent<FileReader>;
+  "error": ProgressEvent<FileReader>;
+  "load": ProgressEvent<FileReader>;
+  "loadend": ProgressEvent<FileReader>;
+  "loadstart": ProgressEvent<FileReader>;
+  "progress": ProgressEvent<FileReader>;
+}
+
+/** Lets web applications asynchronously read the contents of files (or raw data buffers) stored on the user's computer, using File or Blob objects to specify the file or data to read. */
+interface FileReader extends EventTarget {
+  readonly error: DOMException | null;
+  onabort: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
+  onerror: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
+  onload: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
+  onloadend: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
+  onloadstart:
+    | ((this: FileReader, ev: ProgressEvent<FileReader>) => any)
+    | null;
+  onprogress: ((this: FileReader, ev: ProgressEvent<FileReader>) => any) | null;
+  readonly readyState: number;
+  readonly result: string | ArrayBuffer | null;
+  abort(): void;
+  readAsArrayBuffer(blob: Blob): void;
+  readAsBinaryString(blob: Blob): void;
+  readAsDataURL(blob: Blob): void;
+  readAsText(blob: Blob, encoding?: string): void;
+  readonly DONE: number;
+  readonly EMPTY: number;
+  readonly LOADING: number;
+  addEventListener<K extends keyof FileReaderEventMap>(
+    type: K,
+    listener: (this: FileReader, ev: FileReaderEventMap[K]) => any,
+    options?: boolean | AddEventListenerOptions,
+  ): void;
+  addEventListener(
+    type: string,
+    listener: EventListenerOrEventListenerObject,
+    options?: boolean | AddEventListenerOptions,
+  ): void;
+  removeEventListener<K extends keyof FileReaderEventMap>(
+    type: K,
+    listener: (this: FileReader, ev: FileReaderEventMap[K]) => any,
+    options?: boolean | EventListenerOptions,
+  ): void;
+  removeEventListener(
+    type: string,
+    listener: EventListenerOrEventListenerObject,
+    options?: boolean | EventListenerOptions,
+  ): void;
+}
+
+declare var FileReader: {
+  prototype: FileReader;
+  new (): FileReader;
+  readonly DONE: number;
+  readonly EMPTY: number;
+  readonly LOADING: number;
+};