1 files changed, 12 insertions, 28 deletions
diff --git a/cli/js/web/custom_event.ts b/cli/js/web/custom_event.ts
index 418b7ea34..ea76d2c94 100644
--- a/cli/js/web/custom_event.ts
+++ b/cli/js/web/custom_event.ts
@@ -1,44 +1,28 @@
 // Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
-import * as domTypes from "./dom_types.ts";
-import * as event from "./event.ts";
+import { EventImpl as Event } from "./event.ts";
 import { requiredArguments } from "./util.ts";
 
-export class CustomEvent extends event.Event implements domTypes.CustomEvent {
-  // eslint-disable-next-line @typescript-eslint/no-explicit-any
-  #detail: any;
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+export class CustomEventImpl<T = any> extends Event implements CustomEvent {
+  #detail: T;
 
-  constructor(
-    type: string,
-    customEventInitDict: domTypes.CustomEventInit = {}
-  ) {
-    super(type, customEventInitDict);
+  constructor(type: string, eventInitDict: CustomEventInit<T> = {}) {
+    super(type, eventInitDict);
     requiredArguments("CustomEvent", arguments.length, 1);
-    const { detail = null } = customEventInitDict;
-    this.#detail = detail;
+    const { detail } = eventInitDict;
+    this.#detail = detail as T;
   }
 
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
-  get detail(): any {
+  get detail(): T {
     return this.#detail;
   }
 
-  initCustomEvent(
-    _type: string,
-    _bubbles?: boolean,
-    _cancelable?: boolean,
-    // eslint-disable-next-line @typescript-eslint/no-explicit-any
-    detail?: any
-  ): void {
-    if (this.dispatched) {
-      return;
-    }
-
-    this.#detail = detail;
-  }
-
   get [Symbol.toStringTag](): string {
     return "CustomEvent";
   }
 }
 
-Reflect.defineProperty(CustomEvent.prototype, "detail", { enumerable: true });
+Reflect.defineProperty(CustomEventImpl.prototype, "detail", {
+  enumerable: true,
+});