diff --git a/cli/dts/lib.deno.shared_globals.d.ts b/cli/dts/lib.deno.shared_globals.d.ts
index a2609be85c77b..d3784705eb907 100644
--- a/cli/dts/lib.deno.shared_globals.d.ts
+++ b/cli/dts/lib.deno.shared_globals.d.ts
@@ -571,7 +571,6 @@ declare class CustomEvent<T = any> extends Event {
 
 interface ErrorConstructor {
   /** See https://v8.dev/docs/stack-trace-api#stack-trace-collection-for-custom-exceptions. */
-  // eslint-disable-next-line @typescript-eslint/ban-types
   captureStackTrace(error: Object, constructor?: Function): void;
   // TODO(nayeemrmn): Support `Error.prepareStackTrace()`. We currently use this
   // internally in a way that makes it unavailable for users.
diff --git a/cli/tests/018_async_catch.ts b/cli/tests/018_async_catch.ts
index a16f11696bc57..85423ceda9a90 100644
--- a/cli/tests/018_async_catch.ts
+++ b/cli/tests/018_async_catch.ts
@@ -6,7 +6,7 @@ async function call(): Promise<void> {
     console.log("before await fn()");
     await fn();
     console.log("after await fn()");
-  } catch (error) {
+  } catch (_error) {
     console.log("catch");
   }
   console.log("after try-catch");
diff --git a/cli/tests/038_checkjs.js b/cli/tests/038_checkjs.js
index 628d3e37610aa..f0856d94c4f6f 100644
--- a/cli/tests/038_checkjs.js
+++ b/cli/tests/038_checkjs.js
@@ -2,5 +2,4 @@
 consol.log("hello world!");
 
 // the following error should be ignored and not output to the console
-// eslint-disable-next-line
 const foo = new Foo();
diff --git a/cli/tests/038_checkjs.js.out b/cli/tests/038_checkjs.js.out
index 4522902725f61..bd3fc35481513 100644
--- a/cli/tests/038_checkjs.js.out
+++ b/cli/tests/038_checkjs.js.out
@@ -12,11 +12,11 @@ consol.log("hello world!");
 TS2552 [ERROR]: Cannot find name 'Foo'. Did you mean 'foo'?
 const foo = new Foo();
                 ~~~
-    at [WILDCARD]tests/038_checkjs.js:6:17
+    at [WILDCARD]tests/038_checkjs.js:5:17
 
     'foo' is declared here.
     const foo = new Foo();
           ~~~
-        at [WILDCARD]tests/038_checkjs.js:6:7
+        at [WILDCARD]tests/038_checkjs.js:5:7
 
 Found 2 errors.
diff --git a/cli/tests/048_media_types_jsx.ts b/cli/tests/048_media_types_jsx.ts
index c2ece995a6bf4..0449630006fb4 100644
--- a/cli/tests/048_media_types_jsx.ts
+++ b/cli/tests/048_media_types_jsx.ts
@@ -11,7 +11,6 @@ import { loaded as loadedJsx3 } from "http://localhost:4545/cli/tests/subdir/mt_
 import { loaded as loadedJsx4 } from "http://localhost:4545/cli/tests/subdir/mt_application_x_javascript_jsx.j4.jsx";
 
 declare global {
-  // deno-lint-ignore no-namespace
   namespace JSX {
     interface IntrinsicElements {
       // deno-lint-ignore no-explicit-any
diff --git a/cli/tests/067_test_no_run_type_error.out b/cli/tests/067_test_no_run_type_error.out
index f67ee66474a0f..a09d0434836dc 100644
--- a/cli/tests/067_test_no_run_type_error.out
+++ b/cli/tests/067_test_no_run_type_error.out
@@ -1,4 +1,4 @@
 [WILDCARD]error: TS2322 [ERROR]: Type 'number' is not assignable to type 'string'.
-const a: string = 1;
-      ^
+const _a: string = 1;
+      ~~
     at [WILDCARD]foo_test.ts[WILDCARD]
diff --git a/cli/tests/076_info_json_deps_order.out b/cli/tests/076_info_json_deps_order.out
index 615732e67c995..2d87a10540638 100644
--- a/cli/tests/076_info_json_deps_order.out
+++ b/cli/tests/076_info_json_deps_order.out
@@ -10,10 +10,10 @@
           "code": "file://[WILDCARD]/cli/tests/recursive_imports/A.ts"
         }
       ],
-      "size": 46,
+      "size": 81,
       "mediaType": "TypeScript",
       "local": "[WILDCARD]076_info_json_deps_order.ts",
-      "checksum": "88b144f362d31ac42263648aadef727dd36d039d3b8ac0248fdaff25d4de415a"
+      "checksum": "5dd40fe33e5924cca513489ce568e86c9b9fe318a87975403c8923629018680d"
     },
     {
       "specifier": "file://[WILDCARD]/cli/tests/recursive_imports/A.ts",
@@ -81,5 +81,5 @@
       "checksum": "01b595d69514bfd001ba2cf421feabeaef559513f10697bf1a22781f8a8ed7f0"
     }
   ],
-  "size": 440
+  "size": 475
 }
\ No newline at end of file
diff --git a/cli/tests/076_info_json_deps_order.ts b/cli/tests/076_info_json_deps_order.ts
index f9d35fd5acc1e..b1ae75e68e042 100644
--- a/cli/tests/076_info_json_deps_order.ts
+++ b/cli/tests/076_info_json_deps_order.ts
@@ -1 +1,2 @@
+// deno-lint-ignore no-unused-vars
 import { A } from "./recursive_imports/A.ts";
diff --git a/cli/tests/091_use_define_for_class_fields.ts b/cli/tests/091_use_define_for_class_fields.ts
index 9be984abf4011..46be3ac0b8563 100644
--- a/cli/tests/091_use_define_for_class_fields.ts
+++ b/cli/tests/091_use_define_for_class_fields.ts
@@ -1,4 +1,4 @@
-class A {
+class _A {
   b = this.a;
   constructor(public a: unknown) {}
 }
diff --git a/cli/tests/deno_doc.ts b/cli/tests/deno_doc.ts
index 92ba2f174de28..fb3c5095736df 100644
--- a/cli/tests/deno_doc.ts
+++ b/cli/tests/deno_doc.ts
@@ -1,4 +1,3 @@
 /** Some JSDoc */
-// eslint-disable-next-line @typescript-eslint/explicit-function-return-type
 export function foo() {
 }
diff --git a/cli/tests/error_004_missing_module.ts b/cli/tests/error_004_missing_module.ts
index ab5350408ccb6..82b2811816f98 100644
--- a/cli/tests/error_004_missing_module.ts
+++ b/cli/tests/error_004_missing_module.ts
@@ -1,4 +1,3 @@
-// eslint-disable-next-line
 import * as badModule from "./bad-module.ts";
 
 console.log(badModule);
diff --git a/cli/tests/error_004_missing_module.ts.out b/cli/tests/error_004_missing_module.ts.out
index 1b3dd534f231a..474fdf8ed13c3 100644
--- a/cli/tests/error_004_missing_module.ts.out
+++ b/cli/tests/error_004_missing_module.ts.out
@@ -1,2 +1,2 @@
 [WILDCARD]error: Cannot resolve module "file:///[WILDCARD]cli/tests/bad-module.ts" from "file:///[WILDCARD]cli/tests/error_004_missing_module.ts".
-    at file:///[WILDCARD]cli/tests/error_004_missing_module.ts:2:0
+    at file:///[WILDCARD]cli/tests/error_004_missing_module.ts:1:0
diff --git a/cli/tests/error_005_missing_dynamic_import.ts b/cli/tests/error_005_missing_dynamic_import.ts
index 4c09feb5faa56..4ff10f275f3f4 100644
--- a/cli/tests/error_005_missing_dynamic_import.ts
+++ b/cli/tests/error_005_missing_dynamic_import.ts
@@ -1,4 +1,3 @@
 (async (): Promise<void> => {
-  // eslint-disable-next-line
-  const badModule = await import("./bad-module.ts");
+  const _badModule = await import("./bad-module.ts");
 })();
diff --git a/cli/tests/error_005_missing_dynamic_import.ts.out b/cli/tests/error_005_missing_dynamic_import.ts.out
index e21c7fffee53f..da680e19572c3 100644
--- a/cli/tests/error_005_missing_dynamic_import.ts.out
+++ b/cli/tests/error_005_missing_dynamic_import.ts.out
@@ -1,4 +1,4 @@
 error: Uncaught (in promise) TypeError: Cannot resolve module "[WILDCARD]/cli/tests/bad-module.ts".
-  const badModule = await import("./bad-module.ts");
-                    ^
-    at async file://[WILDCARD]/error_005_missing_dynamic_import.ts:3:21
+  const _badModule = await import("./bad-module.ts");
+                     ^
+    at async file://[WILDCARD]/error_005_missing_dynamic_import.ts:2:22
diff --git a/cli/tests/error_008_checkjs.js b/cli/tests/error_008_checkjs.js
index 628d3e37610aa..f0856d94c4f6f 100644
--- a/cli/tests/error_008_checkjs.js
+++ b/cli/tests/error_008_checkjs.js
@@ -2,5 +2,4 @@
 consol.log("hello world!");
 
 // the following error should be ignored and not output to the console
-// eslint-disable-next-line
 const foo = new Foo();
diff --git a/cli/tests/error_011_bad_module_specifier.ts b/cli/tests/error_011_bad_module_specifier.ts
index a9ccc45231a64..1c57e37a51d98 100644
--- a/cli/tests/error_011_bad_module_specifier.ts
+++ b/cli/tests/error_011_bad_module_specifier.ts
@@ -1,4 +1,3 @@
-// eslint-disable-next-line
 import * as badModule from "bad-module.ts";
 
 console.log(badModule);
diff --git a/cli/tests/error_012_bad_dynamic_import_specifier.ts b/cli/tests/error_012_bad_dynamic_import_specifier.ts
index 0420a80bf7313..1b538b7871b43 100644
--- a/cli/tests/error_012_bad_dynamic_import_specifier.ts
+++ b/cli/tests/error_012_bad_dynamic_import_specifier.ts
@@ -1,4 +1,3 @@
 (async (): Promise<void> => {
-  // eslint-disable-next-line
-  const badModule = await import("bad-module.ts");
+  const _badModule = await import("bad-module.ts");
 })();
diff --git a/cli/tests/error_012_bad_dynamic_import_specifier.ts.out b/cli/tests/error_012_bad_dynamic_import_specifier.ts.out
index 15658a6ebf599..45bce8261604f 100644
--- a/cli/tests/error_012_bad_dynamic_import_specifier.ts.out
+++ b/cli/tests/error_012_bad_dynamic_import_specifier.ts.out
@@ -1,5 +1,5 @@
 Check [WILDCARD]error_012_bad_dynamic_import_specifier.ts
 error: Uncaught (in promise) TypeError: relative import path "bad-module.ts" not prefixed with / or ./ or ../ Imported from "[WILDCARD]/error_012_bad_dynamic_import_specifier.ts"
-  const badModule = await import("bad-module.ts");
-                    ^
-    at async file:///[WILDCARD]/error_012_bad_dynamic_import_specifier.ts:3:21
+  const _badModule = await import("bad-module.ts");
+                     ^
+    at async file:///[WILDCARD]/error_012_bad_dynamic_import_specifier.ts:2:22
diff --git a/cli/tests/file_exists.ts b/cli/tests/file_exists.ts
index 5fc5414b38996..20de4d4f2f37b 100644
--- a/cli/tests/file_exists.ts
+++ b/cli/tests/file_exists.ts
@@ -1,6 +1,6 @@
 try {
   await Deno.open(Deno.args[0]);
   Deno.exit(0);
-} catch (e) {
+} catch (_e) {
   Deno.exit(1);
 }
diff --git a/cli/tests/heapstats.js b/cli/tests/heapstats.js
index fba9e66d9c0ff..675fac2d61038 100644
--- a/cli/tests/heapstats.js
+++ b/cli/tests/heapstats.js
@@ -14,6 +14,7 @@ function allocTest(alloc, allocAssert, deallocAssert) {
   const t1 = sample();
 
   // Alloc
+  // deno-lint-ignore no-unused-vars
   let x = alloc();
   const t2 = sample();
   allocAssert(delta(t1, t2));
diff --git a/cli/tests/no_validate_asm.js b/cli/tests/no_validate_asm.js
index 38ea0a446b3bf..ef999e0802658 100644
--- a/cli/tests/no_validate_asm.js
+++ b/cli/tests/no_validate_asm.js
@@ -1,7 +1,7 @@
 // V8 logs any asmjs validation errors to stdout, but it shows line numbers that
 // are non-existent in the source.
 
-const asmJsModule = function () {
+const _asmJsModule = function () {
   "use asm";
 
   function func(
diff --git a/cli/tests/resolve_dns.ts b/cli/tests/resolve_dns.ts
index 7865d9680af50..d765e0536a5ac 100644
--- a/cli/tests/resolve_dns.ts
+++ b/cli/tests/resolve_dns.ts
@@ -37,6 +37,6 @@ console.log(JSON.stringify(txt));
 
 try {
   await Deno.resolveDns("not-found-example.com", "A", nameServer);
-} catch (e) {
+} catch (_e) {
   console.log("Error thrown for not-found-example.com");
 }
diff --git a/cli/tests/test/unhandled_rejection.ts b/cli/tests/test/unhandled_rejection.ts
index 396e1c09d073d..32f3111eadba5 100644
--- a/cli/tests/test/unhandled_rejection.ts
+++ b/cli/tests/test/unhandled_rejection.ts
@@ -1,3 +1,3 @@
-new Promise((resolve, reject) => {
+new Promise((_resolve, reject) => {
   reject(new Error("rejection"));
 });
diff --git a/cli/tests/test_type_error/foo_test.ts b/cli/tests/test_type_error/foo_test.ts
index 68d1afccf8662..4b9404558b678 100644
--- a/cli/tests/test_type_error/foo_test.ts
+++ b/cli/tests/test_type_error/foo_test.ts
@@ -1 +1 @@
-const a: string = 1;
+const _a: string = 1;
diff --git a/cli/tests/unit/opcall_test.ts b/cli/tests/unit/opcall_test.ts
index 6bade65457fd7..bd549570e8759 100644
--- a/cli/tests/unit/opcall_test.ts
+++ b/cli/tests/unit/opcall_test.ts
@@ -17,7 +17,7 @@ unitTest(async function sendAsyncStackTrace() {
 declare global {
   namespace Deno {
     // deno-lint-ignore no-explicit-any
-    var core: any; // eslint-disable-line no-var
+    var core: any;
   }
 }
 
diff --git a/cli/tests/workers/bench_large_message.ts b/cli/tests/workers/bench_large_message.ts
index 53076e7113adf..7f6cb26ce01a5 100644
--- a/cli/tests/workers/bench_large_message.ts
+++ b/cli/tests/workers/bench_large_message.ts
@@ -7,7 +7,7 @@ function oneWorker(i: number) {
       new URL("worker_large_message.js", import.meta.url).href,
       { type: "module" },
     );
-    worker.onmessage = (e): void => {
+    worker.onmessage = (_e): void => {
       if (countDown > 0) {
         countDown--;
         return;
diff --git a/cli/tests/workers/permissions_blob_local.ts.out b/cli/tests/workers/permissions_blob_local.ts.out
index fab2388d8ddf0..0f6ae1435f04a 100644
--- a/cli/tests/workers/permissions_blob_local.ts.out
+++ b/cli/tests/workers/permissions_blob_local.ts.out
@@ -1,4 +1,4 @@
 error: Uncaught (in worker "") Requires read access to "[WILDCARD]local_file.ts", run again with the --allow-read flag
     at blob:null/[WILDCARD]:1:0
 error: Uncaught (in promise) Error: Unhandled error event reached main worker.
-    at Worker.#poll (deno:runtime/js/11_workers.js:246:23)
+    at Worker.#poll (deno:runtime/js/11_workers.js:245:23)
diff --git a/cli/tests/workers/permissions_blob_remote.ts.out b/cli/tests/workers/permissions_blob_remote.ts.out
index c89f7b41cce29..751218ba47796 100644
--- a/cli/tests/workers/permissions_blob_remote.ts.out
+++ b/cli/tests/workers/permissions_blob_remote.ts.out
@@ -1,4 +1,4 @@
 error: Uncaught (in worker "") Requires net access to "example.com", run again with the --allow-net flag
     at blob:null/[WILDCARD]:1:0
 error: Uncaught (in promise) Error: Unhandled error event reached main worker.
-    at Worker.#poll (deno:runtime/js/11_workers.js:246:23)
+    at Worker.#poll (deno:runtime/js/11_workers.js:245:23)
diff --git a/cli/tests/workers/permissions_data_local.ts.out b/cli/tests/workers/permissions_data_local.ts.out
index a1e1de8ab4267..00a2516591dcc 100644
--- a/cli/tests/workers/permissions_data_local.ts.out
+++ b/cli/tests/workers/permissions_data_local.ts.out
@@ -1,4 +1,4 @@
 error: Uncaught (in worker "") Requires read access to "[WILDCARD]local_file.ts", run again with the --allow-read flag
     at data:application/javascript;base64,[WILDCARD]:1:0
 error: Uncaught (in promise) Error: Unhandled error event reached main worker.
-    at Worker.#poll (deno:runtime/js/11_workers.js:246:23)
+    at Worker.#poll (deno:runtime/js/11_workers.js:245:23)
diff --git a/cli/tests/workers/permissions_data_remote.ts.out b/cli/tests/workers/permissions_data_remote.ts.out
index 2c40806724e69..f2b5fa48bcda4 100644
--- a/cli/tests/workers/permissions_data_remote.ts.out
+++ b/cli/tests/workers/permissions_data_remote.ts.out
@@ -1,4 +1,4 @@
 error: Uncaught (in worker "") Requires net access to "example.com", run again with the --allow-net flag
     at data:application/javascript;base64,aW1wb3J0ICJodHRwczovL2V4YW1wbGUuY29tL3NvbWUvZmlsZS50cyI7:1:0
 error: Uncaught (in promise) Error: Unhandled error event reached main worker.
-    at Worker.#poll (deno:runtime/js/11_workers.js:246:23)
+    at Worker.#poll (deno:runtime/js/11_workers.js:245:23)
diff --git a/cli/tests/workers/permissions_dynamic_remote.ts.out b/cli/tests/workers/permissions_dynamic_remote.ts.out
index 8600fa19161c1..63a8af51f107d 100644
--- a/cli/tests/workers/permissions_dynamic_remote.ts.out
+++ b/cli/tests/workers/permissions_dynamic_remote.ts.out
@@ -3,4 +3,4 @@ await import("https://example.com/some/file.ts");
 ^
     at async http://localhost:4545/cli/tests/workers/dynamic_remote.ts:2:1
 [WILDCARD]error: Uncaught (in promise) Error: Unhandled error event reached main worker.
-    at Worker.#poll (deno:runtime/js/11_workers.js:246:23)
+    at Worker.#poll (deno:runtime/js/11_workers.js:245:23)
diff --git a/cli/tests/workers/permissions_remote_remote.ts.out b/cli/tests/workers/permissions_remote_remote.ts.out
index 714150a3a557a..964f8b8e916a2 100644
--- a/cli/tests/workers/permissions_remote_remote.ts.out
+++ b/cli/tests/workers/permissions_remote_remote.ts.out
@@ -1,4 +1,4 @@
 error: Uncaught (in worker "") Requires net access to "example.com", run again with the --allow-net flag
     at http://localhost:4545/cli/tests/workers/static_remote.ts:2:0
 error: Uncaught (in promise) Error: Unhandled error event reached main worker.
-    at Worker.#poll (deno:runtime/js/11_workers.js:246:23)
+    at Worker.#poll (deno:runtime/js/11_workers.js:245:23)
diff --git a/cli/tests/workers/test.ts b/cli/tests/workers/test.ts
index 954737b3a9182..bf1e46a34341f 100644
--- a/cli/tests/workers/test.ts
+++ b/cli/tests/workers/test.ts
@@ -198,7 +198,7 @@ Deno.test({
       { type: "module" },
     );
 
-    racyWorker.onmessage = (e): void => {
+    racyWorker.onmessage = (_e): void => {
       setTimeout(() => {
         promise.resolve();
       }, 100);
@@ -353,7 +353,7 @@ Deno.test({
     );
     const arr: number[] = [];
     w.addEventListener("message", () => arr.push(1));
-    w.onmessage = (e): void => {
+    w.onmessage = (_e): void => {
       arr.push(2);
     };
     w.addEventListener("message", () => arr.push(3));
diff --git a/cli/tests/workers/worker_large_message.js b/cli/tests/workers/worker_large_message.js
index f7b7da8a02a96..a1ddae4f981dd 100644
--- a/cli/tests/workers/worker_large_message.js
+++ b/cli/tests/workers/worker_large_message.js
@@ -3,7 +3,7 @@
 const dataSmall = "";
 const dataLarge = "x".repeat(10 * 1024);
 
-onmessage = function (e) {
+onmessage = function (_e) {
   for (let i = 0; i <= 10; i++) {
     if (i % 2 == 0) {
       postMessage(dataLarge);
diff --git a/cli/tests/workers/worker_with_top_level_await.ts b/cli/tests/workers/worker_with_top_level_await.ts
index 6c55289008837..bc77c7932e803 100644
--- a/cli/tests/workers/worker_with_top_level_await.ts
+++ b/cli/tests/workers/worker_with_top_level_await.ts
@@ -6,7 +6,7 @@ function delay(ms: number): Promise<void> {
   });
 }
 
-onmessage = (e: MessageEvent) => {
+onmessage = (_e: MessageEvent) => {
   postMessage("triggered worker handler");
   close();
 };
diff --git a/cli/tsc/compiler.d.ts b/cli/tsc/compiler.d.ts
index e5ce12cd323f5..949d98ee0b90a 100644
--- a/cli/tsc/compiler.d.ts
+++ b/cli/tsc/compiler.d.ts
@@ -5,7 +5,6 @@
 import * as _ts from "../dts/typescript";
 
 declare global {
-  // deno-lint-ignore no-namespace
   namespace ts {
     var libs: string[];
     var libMap: Map<string, string>;
@@ -22,7 +21,6 @@ declare global {
     var performance: Performance;
   }
 
-  // deno-lint-ignore no-namespace
   namespace ts {
     export = _ts;
   }
diff --git a/extensions/fetch/21_formdata.js b/extensions/fetch/21_formdata.js
index c50cf4cf77f63..379d5eca129ac 100644
--- a/extensions/fetch/21_formdata.js
+++ b/extensions/fetch/21_formdata.js
@@ -11,7 +11,7 @@
 /// <reference lib="esnext" />
 "use strict";
 
-((window) => {
+((_window) => {
   const webidl = globalThis.__bootstrap.webidl;
   const { Blob, File, _byteSequence } = globalThis.__bootstrap.file;
 
diff --git a/extensions/fetch/23_request.js b/extensions/fetch/23_request.js
index 603a37a5fe651..480b83182b5c7 100644
--- a/extensions/fetch/23_request.js
+++ b/extensions/fetch/23_request.js
@@ -16,7 +16,7 @@
   const { HTTP_TOKEN_CODE_POINT_RE, byteUpperCase } = window.__bootstrap.infra;
   const { URL } = window.__bootstrap.url;
   const { guardFromHeaders } = window.__bootstrap.headers;
-  const { InnerBody, mixinBody, extractBody } = window.__bootstrap.fetchBody;
+  const { mixinBody, extractBody } = window.__bootstrap.fetchBody;
   const { getLocationHref } = window.__bootstrap.location;
   const mimesniff = window.__bootstrap.mimesniff;
   const {
@@ -38,7 +38,7 @@
    * @property {() => string} url
    * @property {() => string} currentUrl
    * @property {[string, string][]} headerList
-   * @property {null | InnerBody} body
+   * @property {null | typeof __window.bootstrap.fetchBody.InnerBody} body
    * @property {"follow" | "error" | "manual"} redirectMode
    * @property {number} redirectCount
    * @property {string[]} urlList
@@ -61,7 +61,7 @@
    * @param {string} method
    * @param {string} url
    * @param {[string, string][]} headerList
-   * @param {InnerBody} body
+   * @param {typeof __window.bootstrap.fetchBody.InnerBody} body
    * @returns
    */
   function newInnerRequest(method, url, headerList = [], body = null) {
diff --git a/extensions/fetch/23_response.js b/extensions/fetch/23_response.js
index 6bd7a64875fc4..6d9874c6a555b 100644
--- a/extensions/fetch/23_response.js
+++ b/extensions/fetch/23_response.js
@@ -15,7 +15,7 @@
 ((window) => {
   const webidl = window.__bootstrap.webidl;
   const { HTTP_TAB_OR_SPACE, regexMatcher } = window.__bootstrap.infra;
-  const { InnerBody, extractBody, mixinBody } = window.__bootstrap.fetchBody;
+  const { extractBody, mixinBody } = window.__bootstrap.fetchBody;
   const { getLocationHref } = window.__bootstrap.location;
   const mimesniff = window.__bootstrap.mimesniff;
   const { URL } = window.__bootstrap.url;
@@ -47,7 +47,7 @@
    * @property {number} status
    * @property {string} statusMessage
    * @property {[string, string][]} headerList
-   * @property {null | InnerBody} body
+   * @property {null | typeof __window.bootstrap.fetchBody.InnerBody} body
    * @property {string} [error]
    */
 
diff --git a/extensions/file/01_file.js b/extensions/file/01_file.js
index 05c4105723bf6..cbbf98e7d83ff 100644
--- a/extensions/file/01_file.js
+++ b/extensions/file/01_file.js
@@ -216,6 +216,7 @@
         });
       }
 
+      // deno-lint-ignore no-this-alias
       const O = this;
       /** @type {number} */
       let relativeStart;
diff --git a/extensions/timers/01_timers.js b/extensions/timers/01_timers.js
index 756e38875147f..66faf85fd7ca7 100644
--- a/extensions/timers/01_timers.js
+++ b/extensions/timers/01_timers.js
@@ -344,7 +344,6 @@
     opStartGlobalTimer(timeout);
     await opWaitGlobalTimer();
     pendingEvents--;
-    // eslint-disable-next-line @typescript-eslint/no-use-before-define
     prepareReadyTimers();
   }
 
diff --git a/extensions/web/02_event.js b/extensions/web/02_event.js
index 35112132e05a2..b6b5609bcc37c 100644
--- a/extensions/web/02_event.js
+++ b/extensions/web/02_event.js
@@ -706,7 +706,7 @@
     for (let i = 0; i < handlers.length; i++) {
       const listener = handlers[i];
 
-      let capture, once, passive, signal;
+      let capture, once, passive;
       if (typeof listener.options === "boolean") {
         capture = listener.options;
         once = false;
diff --git a/extensions/web/08_text_encoding.js b/extensions/web/08_text_encoding.js
index c293633c3139d..2804ff6a0215b 100644
--- a/extensions/web/08_text_encoding.js
+++ b/extensions/web/08_text_encoding.js
@@ -4474,7 +4474,7 @@
     return ((validLen + placeHoldersLen) * 3) / 4 - placeHoldersLen;
   }
 
-  function _byteLength(b64, validLen, placeHoldersLen) {
+  function _byteLength(_b64, validLen, placeHoldersLen) {
     return ((validLen + placeHoldersLen) * 3) / 4 - placeHoldersLen;
   }
 
diff --git a/extensions/webidl/00_webidl.js b/extensions/webidl/00_webidl.js
index 6bf98be064f75..6fffa93190350 100644
--- a/extensions/webidl/00_webidl.js
+++ b/extensions/webidl/00_webidl.js
@@ -385,7 +385,6 @@
 
   function isArrayBufferDetached(V) {
     try {
-      // eslint-disable-next-line no-new
       new Uint8Array(V);
       return false;
     } catch {
diff --git a/runtime/js/11_workers.js b/runtime/js/11_workers.js
index dca83c818172d..641833778b7de 100644
--- a/runtime/js/11_workers.js
+++ b/runtime/js/11_workers.js
@@ -7,7 +7,6 @@
   const { getLocationHref } = window.__bootstrap.location;
   const { log, pathFromURL } = window.__bootstrap.util;
   const { defineEventHandler } = window.__bootstrap.webUtil;
-  const build = window.__bootstrap.build.build;
 
   function createWorker(
     specifier,
diff --git a/runtime/js/40_http.js b/runtime/js/40_http.js
index afc5635ac9c8d..eb3c58a6327c5 100644
--- a/runtime/js/40_http.js
+++ b/runtime/js/40_http.js
@@ -77,6 +77,7 @@
     }
 
     [Symbol.asyncIterator]() {
+      // deno-lint-ignore no-this-alias
       const httpConn = this;
       return {
         async next() {
diff --git a/runtime/js/40_testing.js b/runtime/js/40_testing.js
index f835a0cf79669..8abb8a6c87eaa 100644
--- a/runtime/js/40_testing.js
+++ b/runtime/js/40_testing.js
@@ -4,7 +4,7 @@
 ((window) => {
   const core = window.Deno.core;
   const { parsePermissions } = window.__bootstrap.worker;
-  const { setExitHandler, exit } = window.__bootstrap.os;
+  const { setExitHandler } = window.__bootstrap.os;
   const { Console, inspectArgs } = window.__bootstrap.console;
   const { metrics } = window.__bootstrap.metrics;
   const { assert } = window.__bootstrap.util;
diff --git a/runtime/js/99_main.js b/runtime/js/99_main.js
index 082c83593e619..796d5178f37c4 100644
--- a/runtime/js/99_main.js
+++ b/runtime/js/99_main.js
@@ -59,8 +59,6 @@ delete Object.prototype.__proto__;
     }
   }
 
-  const encoder = new TextEncoder();
-
   function workerClose() {
     if (isClosing) {
       return;
diff --git a/third_party b/third_party
index 3bd4e3652304e..6c449eaecb078 160000
--- a/third_party
+++ b/third_party
@@ -1 +1 @@
-Subproject commit 3bd4e3652304eb97177e1fc217943529322f4680
+Subproject commit 6c449eaecb0783b06003b5eecd2893bd2617d66e
diff --git a/tools/wpt/runner.ts b/tools/wpt/runner.ts
index b106283d2a78a..eae53094df0c9 100644
--- a/tools/wpt/runner.ts
+++ b/tools/wpt/runner.ts
@@ -21,7 +21,7 @@ export async function runWithTestUtil<T>(
       if (req.status == 200) {
         break;
       }
-    } catch (err) {
+    } catch (_err) {
       // do nothing if this fails
     }
     const passedTime = performance.now() - start;
@@ -61,7 +61,7 @@ export interface TestCaseResult {
 
 export async function runSingleTest(
   url: URL,
-  options: ManifestTestOptions,
+  _options: ManifestTestOptions,
   reporter: (result: TestCaseResult) => void,
 ): Promise<TestResult> {
   const bundle = await generateBundle(url);
diff --git a/tools/wpt/testharnessreport.js b/tools/wpt/testharnessreport.js
index 8cff0752c6eb6..d3e7833767364 100644
--- a/tools/wpt/testharnessreport.js
+++ b/tools/wpt/testharnessreport.js
@@ -1,13 +1,15 @@
 // Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
+
 window.add_result_callback(({ message, name, stack, status }) => {
-  Deno.writeAllSync(
-    Deno.stderr,
-    new TextEncoder().encode(
-      `${JSON.stringify({ name, status, message, stack })}\n`,
-    ),
+  const data = new TextEncoder().encode(
+    `${JSON.stringify({ name, status, message, stack })}\n`,
   );
+  let bytesWritten = 0;
+  while (bytesWritten < data.byteLength) {
+    bytesWritten += Deno.stderr.writeSync(data.subarray(bytesWritten));
+  }
 });
 
-window.add_completion_callback((tests, harnessStatus) => {
+window.add_completion_callback((_tests, _harnessStatus) => {
   Deno.exit(0);
 });