Eslint integration (#2885)

* eslint integration

* ci & pre commit

* dev

* dev

* dev

tests/retryer.test.js

@@ -2,20 +2,21 @@ import { jest } from "@jest/globals";
 import "@testing-library/jest-dom";
 import { retryer } from "../src/common/retryer.js";
 import { logger } from "../src/common/utils.js";
+import { expect, it, describe } from "@jest/globals";
 
 const fetcher = jest.fn((variables, token) => {
   logger.log(variables, token);
-  return new Promise((res, rej) => res({ data: "ok" }));
+  return new Promise((res) => res({ data: "ok" }));
 });
 
 const fetcherFail = jest.fn(() => {
-  return new Promise((res, rej) =>
+  return new Promise((res) =>
     res({ data: { errors: [{ type: "RATE_LIMITED" }] } }),
   );
 });
 
 const fetcherFailOnSecondTry = jest.fn((_vars, _token, retries) => {
-  return new Promise((res, rej) => {
+  return new Promise((res) => {
     // faking rate limit
     if (retries < 1) {
       return res({ data: { errors: [{ type: "RATE_LIMITED" }] } });
@@ -40,10 +41,8 @@ describe("Test Retryer", () => {
   });
 
   it("retryer should throw error if maximum retries reached", async () => {
-    let res;
-
     try {
-      res = await retryer(fetcherFail, {});
+      await retryer(fetcherFail, {});
     } catch (err) {
       expect(fetcherFail).toBeCalledTimes(8);
       expect(err.message).toBe("Maximum retries exceeded");