Use flat ESLint config

package.json

@@ -41,7 +41,7 @@
     "confusing-browser-globals": "^1.0.11",
     "david": "^12.0.0",
     "es-observable": "git+https://github.com/tc39/proposal-observable.git#d3404f06bc70c7c578a5047dfb3dc813730e3319",
-    "eslint": "^8.23.1",
+    "eslint": "^8.24.0",
     "eslint-plugin-array-func": "^3.1.7",
     "eslint-plugin-es-x": "^5.3.1",
     "eslint-plugin-eslint-comments": "^3.2.0",
@@ -53,6 +53,7 @@
     "eslint-plugin-regexp": "^1.9.0",
     "eslint-plugin-sonarjs": "~0.15.0",
     "eslint-plugin-unicorn": "^43.0.2",
+    "globals": "^13.17.0",
     "jsonc-eslint-parser": "^2.1.0",
     "jszip": "^3.10.1",
     "karma": "^6.4.1",
@@ -113,7 +114,7 @@
     "copy-compat-table": "zx scripts/copy-compat-table.mjs",
     "generate-indexes": "zx scripts/generate-indexes.mjs",
     "lint": "run-s init test-lint",
-    "test-lint": "eslint --ext .js,.mjs,.json ./",
+    "test-lint": "eslint ./",
     "test-unit": "run-s test-unit-karma test-unit-node",
     "test-unit-global": "karma start -f=packages/core-js-bundle/index.js,tests/bundles/tests.js",
     "test-unit-global-standalone": "run-s init bundle-package bundle-helpers bundle-tests-global test-unit-global",

packages/core-js-compat/helpers.js

@@ -1,5 +1,5 @@
 'use strict';
-// eslint-disable-next-line es-x/no-object-hasown -- safe
+// eslint-disable-next-line es/no-object-hasown -- safe
 const has = Object.hasOwn || Function.call.bind({}.hasOwnProperty);
 
 function semver(input) {

packages/core-js/es/json/index.js

@@ -2,5 +2,5 @@ require('../../modules/es.json.stringify');
 require('../../modules/es.json.to-string-tag');
 var path = require('../../internals/path');
 
-// eslint-disable-next-line es-x/no-json -- safe
+// eslint-disable-next-line es/no-json -- safe
 module.exports = path.JSON || (path.JSON = { stringify: JSON.stringify });

packages/core-js/es/json/stringify.js

@@ -2,7 +2,7 @@ require('../../modules/es.json.stringify');
 var path = require('../../internals/path');
 var apply = require('../../internals/function-apply');
 
-// eslint-disable-next-line es-x/no-json -- safe
+// eslint-disable-next-line es/no-json -- safe
 if (!path.JSON) path.JSON = { stringify: JSON.stringify };
 
 // eslint-disable-next-line no-unused-vars -- required for `.length`

packages/core-js/internals/array-buffer-basic-detection.js

@@ -1,2 +1,2 @@
-// eslint-disable-next-line es-x/no-typed-arrays -- safe
+// eslint-disable-next-line es/no-typed-arrays -- safe
 module.exports = typeof ArrayBuffer != 'undefined' && typeof DataView != 'undefined';

packages/core-js/internals/array-buffer-non-extensible.js

@@ -4,7 +4,7 @@ var fails = require('../internals/fails');
 module.exports = fails(function () {
   if (typeof ArrayBuffer == 'function') {
     var buffer = new ArrayBuffer(8);
-    // eslint-disable-next-line es-x/no-object-isextensible, es-x/no-object-defineproperty -- safe
+    // eslint-disable-next-line es/no-object-isextensible, es/no-object-defineproperty -- safe
     if (Object.isExtensible(buffer)) Object.defineProperty(buffer, 'a', { value: 8 });
   }
 });

packages/core-js/internals/array-copy-within.js

@@ -8,7 +8,7 @@ var min = Math.min;
 
 // `Array.prototype.copyWithin` method implementation
 // https://tc39.es/ecma262/#sec-array.prototype.copywithin
-// eslint-disable-next-line es-x/no-array-prototype-copywithin -- safe
+// eslint-disable-next-line es/no-array-prototype-copywithin -- safe
 module.exports = [].copyWithin || function copyWithin(target /* = 0 */, start /* = 0, end = @length */) {
   var O = toObject(this);
   var len = lengthOfArrayLike(O);

packages/core-js/internals/array-for-each.js

@@ -8,5 +8,5 @@ var STRICT_METHOD = arrayMethodIsStrict('forEach');
 // https://tc39.es/ecma262/#sec-array.prototype.foreach
 module.exports = !STRICT_METHOD ? function forEach(callbackfn /* , thisArg */) {
   return $forEach(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
-// eslint-disable-next-line es-x/no-array-prototype-foreach -- safe
+// eslint-disable-next-line es/no-array-prototype-foreach -- safe
 } : [].forEach;

packages/core-js/internals/array-last-index-of.js

@@ -1,5 +1,5 @@
 'use strict';
-/* eslint-disable es-x/no-array-prototype-lastindexof -- safe */
+/* eslint-disable es/no-array-prototype-lastindexof -- safe */
 var apply = require('../internals/function-apply');
 var toIndexedObject = require('../internals/to-indexed-object');
 var toIntegerOrInfinity = require('../internals/to-integer-or-infinity');

packages/core-js/internals/array-set-length.js

@@ -3,15 +3,15 @@ var DESCRIPTORS = require('../internals/descriptors');
 var isArray = require('../internals/is-array');
 
 var $TypeError = TypeError;
-// eslint-disable-next-line es-x/no-object-getownpropertydescriptor -- safe
+// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
 var getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
 
 // Safari < 13 does not throw an error in this case
 var SILENT_ON_NON_WRITABLE_LENGTH_SET = DESCRIPTORS && !function () {
   // makes no sense without proper strict mode support
   if (this !== undefined) return true;
   try {
-    // eslint-disable-next-line es-x/no-object-defineproperty -- safe
+    // eslint-disable-next-line es/no-object-defineproperty -- safe
     Object.defineProperty([], 'length', { writable: false }).length = 1;
   } catch (error) {
     return error instanceof TypeError;

packages/core-js/internals/check-correctness-of-iteration.js

@@ -16,7 +16,7 @@ try {
   iteratorWithReturn[ITERATOR] = function () {
     return this;
   };
-  // eslint-disable-next-line es-x/no-array-from, no-throw-literal -- required for testing
+  // eslint-disable-next-line es/no-array-from, no-throw-literal -- required for testing
   Array.from(iteratorWithReturn, function () { throw 2; });
 } catch (error) { /* empty */ }
 

packages/core-js/internals/correct-prototype-getter.js

@@ -3,6 +3,6 @@ var fails = require('../internals/fails');
 module.exports = !fails(function () {
   function F() { /* empty */ }
   F.prototype.constructor = null;
-  // eslint-disable-next-line es-x/no-object-getprototypeof -- required for testing
+  // eslint-disable-next-line es/no-object-getprototypeof -- required for testing
   return Object.getPrototypeOf(new F()) !== F.prototype;
 });

packages/core-js/internals/define-global-property.js

@@ -1,6 +1,6 @@
 var global = require('../internals/global');
 
-// eslint-disable-next-line es-x/no-object-defineproperty -- safe
+// eslint-disable-next-line es/no-object-defineproperty -- safe
 var defineProperty = Object.defineProperty;
 
 module.exports = function (key, value) {

packages/core-js/internals/descriptors.js

@@ -2,6 +2,6 @@ var fails = require('../internals/fails');
 
 // Detect IE8's incomplete defineProperty implementation
 module.exports = !fails(function () {
-  // eslint-disable-next-line es-x/no-object-defineproperty -- required for testing
+  // eslint-disable-next-line es/no-object-defineproperty -- required for testing
   return Object.defineProperty({}, 1, { get: function () { return 7; } })[1] != 7;
 });

packages/core-js/internals/error-stack-installable.js

@@ -4,7 +4,7 @@ var createPropertyDescriptor = require('../internals/create-property-descriptor'
 module.exports = !fails(function () {
   var error = Error('a');
   if (!('stack' in error)) return true;
-  // eslint-disable-next-line es-x/no-object-defineproperty -- safe
+  // eslint-disable-next-line es/no-object-defineproperty -- safe
   Object.defineProperty(error, 'stack', createPropertyDescriptor(1, 7));
   return error.stack !== 7;
 });

packages/core-js/internals/error-to-string.js

@@ -10,7 +10,7 @@ var nativeErrorToString = Error.prototype.toString;
 var INCORRECT_TO_STRING = fails(function () {
   if (DESCRIPTORS) {
     // Chrome 32- incorrectly call accessor
-    // eslint-disable-next-line es-x/no-object-defineproperty -- safe
+    // eslint-disable-next-line es/no-object-defineproperty -- safe
     var object = create(Object.defineProperty({}, 'name', { get: function () {
       return this === object;
     } }));

packages/core-js/internals/freezing.js

@@ -1,6 +1,6 @@
 var fails = require('../internals/fails');
 
 module.exports = !fails(function () {
-  // eslint-disable-next-line es-x/no-object-isextensible, es-x/no-object-preventextensions -- required for testing
+  // eslint-disable-next-line es/no-object-isextensible, es/no-object-preventextensions -- required for testing
   return Object.isExtensible(Object.preventExtensions({}));
 });

packages/core-js/internals/function-apply.js

@@ -4,7 +4,7 @@ var FunctionPrototype = Function.prototype;
 var apply = FunctionPrototype.apply;
 var call = FunctionPrototype.call;
 
-// eslint-disable-next-line es-x/no-reflect -- safe
+// eslint-disable-next-line es/no-reflect -- safe
 module.exports = typeof Reflect == 'object' && Reflect.apply || (NATIVE_BIND ? call.bind(apply) : function () {
   return call.apply(apply, arguments);
 });

packages/core-js/internals/function-bind-native.js

@@ -1,7 +1,7 @@
 var fails = require('../internals/fails');
 
 module.exports = !fails(function () {
-  // eslint-disable-next-line es-x/no-function-prototype-bind -- safe
+  // eslint-disable-next-line es/no-function-prototype-bind -- safe
   var test = (function () { /* empty */ }).bind();
   // eslint-disable-next-line no-prototype-builtins -- safe
   return typeof test != 'function' || test.hasOwnProperty('prototype');

packages/core-js/internals/function-name.js

@@ -2,7 +2,7 @@ var DESCRIPTORS = require('../internals/descriptors');
 var hasOwn = require('../internals/has-own-property');
 
 var FunctionPrototype = Function.prototype;
-// eslint-disable-next-line es-x/no-object-getownpropertydescriptor -- safe
+// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
 var getDescriptor = DESCRIPTORS && Object.getOwnPropertyDescriptor;
 
 var EXISTS = hasOwn(FunctionPrototype, 'name');

packages/core-js/internals/get-map-iterator.js

@@ -1,6 +1,6 @@
 var call = require('../internals/function-call');
 
 module.exports = function (it) {
-  // eslint-disable-next-line es-x/no-map -- safe
+  // eslint-disable-next-line es/no-map -- safe
   return call(Map.prototype.entries, it);
 };

packages/core-js/internals/get-set-iterator.js

@@ -1,6 +1,6 @@
 var call = require('../internals/function-call');
 
 module.exports = function (it) {
-  // eslint-disable-next-line es-x/no-set -- safe
+  // eslint-disable-next-line es/no-set -- safe
   return call(Set.prototype.values, it);
 };

packages/core-js/internals/global.js

@@ -4,7 +4,7 @@ var check = function (it) {
 
 // https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
 module.exports =
-  // eslint-disable-next-line es-x/no-global-this -- safe
+  // eslint-disable-next-line es/no-global-this -- safe
   check(typeof globalThis == 'object' && globalThis) ||
   check(typeof window == 'object' && window) ||
   // eslint-disable-next-line no-restricted-globals -- safe

packages/core-js/internals/has-own-property.js

@@ -5,7 +5,7 @@ var hasOwnProperty = uncurryThis({}.hasOwnProperty);
 
 // `HasOwnProperty` abstract operation
 // https://tc39.es/ecma262/#sec-hasownproperty
-// eslint-disable-next-line es-x/no-object-hasown -- safe
+// eslint-disable-next-line es/no-object-hasown -- safe
 module.exports = Object.hasOwn || function hasOwn(it, key) {
   return hasOwnProperty(toObject(it), key);
 };

packages/core-js/internals/ie8-dom-define.js

@@ -4,7 +4,7 @@ var createElement = require('../internals/document-create-element');
 
 // Thanks to IE8 for its funny defineProperty
 module.exports = !DESCRIPTORS && !fails(function () {
-  // eslint-disable-next-line es-x/no-object-defineproperty -- required for testing
+  // eslint-disable-next-line es/no-object-defineproperty -- required for testing
   return Object.defineProperty(createElement('div'), 'a', {
     get: function () { return 7; }
   }).a != 7;

packages/core-js/internals/is-array.js

@@ -2,7 +2,7 @@ var classof = require('../internals/classof-raw');
 
 // `IsArray` abstract operation
 // https://tc39.es/ecma262/#sec-isarray
-// eslint-disable-next-line es-x/no-array-isarray -- safe
+// eslint-disable-next-line es/no-array-isarray -- safe
 module.exports = Array.isArray || function isArray(argument) {
   return classof(argument) == 'Array';
 };

packages/core-js/internals/is-integral-number.js

@@ -4,7 +4,7 @@ var floor = Math.floor;
 
 // `IsIntegralNumber` abstract operation
 // https://tc39.es/ecma262/#sec-isintegralnumber
-// eslint-disable-next-line es-x/no-number-isinteger -- safe
+// eslint-disable-next-line es/no-number-isinteger -- safe
 module.exports = Number.isInteger || function isInteger(it) {
   return !isObject(it) && isFinite(it) && floor(it) === it;
 };

packages/core-js/internals/iterators-core.js

@@ -15,7 +15,7 @@ var BUGGY_SAFARI_ITERATORS = false;
 // https://tc39.es/ecma262/#sec-%iteratorprototype%-object
 var IteratorPrototype, PrototypeOfArrayIteratorPrototype, arrayIterator;
 
-/* eslint-disable es-x/no-array-prototype-keys -- safe */
+/* eslint-disable es/no-array-prototype-keys -- safe */
 if ([].keys) {
   arrayIterator = [].keys();
   // Safari 8 has buggy iterators w/o `next`

packages/core-js/internals/make-built-in.js

@@ -8,7 +8,7 @@ var InternalStateModule = require('../internals/internal-state');
 
 var enforceInternalState = InternalStateModule.enforce;
 var getInternalState = InternalStateModule.get;
-// eslint-disable-next-line es-x/no-object-defineproperty -- safe
+// eslint-disable-next-line es/no-object-defineproperty -- safe
 var defineProperty = Object.defineProperty;
 
 var CONFIGURABLE_LENGTH = DESCRIPTORS && !fails(function () {

packages/core-js/internals/math-expm1.js

@@ -1,4 +1,4 @@
-// eslint-disable-next-line es-x/no-math-expm1 -- safe
+// eslint-disable-next-line es/no-math-expm1 -- safe
 var $expm1 = Math.expm1;
 var exp = Math.exp;
 

packages/core-js/internals/math-fround.js

@@ -13,7 +13,7 @@ var roundTiesToEven = function (n) {
 
 // `Math.fround` method implementation
 // https://tc39.es/ecma262/#sec-math.fround
-// eslint-disable-next-line es-x/no-math-fround -- safe
+// eslint-disable-next-line es/no-math-fround -- safe
 module.exports = Math.fround || function fround(x) {
   var n = +x;
   var $abs = abs(n);

packages/core-js/internals/math-log10.js

@@ -1,7 +1,7 @@
 var log = Math.log;
 var LOG10E = Math.LOG10E;
 
-// eslint-disable-next-line es-x/no-math-log10 -- safe
+// eslint-disable-next-line es/no-math-log10 -- safe
 module.exports = Math.log10 || function log10(x) {
   return log(x) * LOG10E;
 };

packages/core-js/internals/math-log1p.js

@@ -2,7 +2,7 @@ var log = Math.log;
 
 // `Math.log1p` method implementation
 // https://tc39.es/ecma262/#sec-math.log1p
-// eslint-disable-next-line es-x/no-math-log1p -- safe
+// eslint-disable-next-line es/no-math-log1p -- safe
 module.exports = Math.log1p || function log1p(x) {
   var n = +x;
   return n > -1e-8 && n < 1e-8 ? n - n * n / 2 : log(1 + n);

packages/core-js/internals/math-sign.js

@@ -1,6 +1,6 @@
 // `Math.sign` method implementation
 // https://tc39.es/ecma262/#sec-math.sign
-// eslint-disable-next-line es-x/no-math-sign -- safe
+// eslint-disable-next-line es/no-math-sign -- safe
 module.exports = Math.sign || function sign(x) {
   var n = +x;
   // eslint-disable-next-line no-self-compare -- NaN check

packages/core-js/internals/math-trunc.js

@@ -3,7 +3,7 @@ var floor = Math.floor;
 
 // `Math.trunc` method
 // https://tc39.es/ecma262/#sec-math.trunc
-// eslint-disable-next-line es-x/no-math-trunc -- safe
+// eslint-disable-next-line es/no-math-trunc -- safe
 module.exports = Math.trunc || function trunc(x) {
   var n = +x;
   return (n > 0 ? floor : ceil)(n);

packages/core-js/internals/number-is-finite.js

@@ -4,7 +4,7 @@ var globalIsFinite = global.isFinite;
 
 // `Number.isFinite` method
 // https://tc39.es/ecma262/#sec-number.isfinite
-// eslint-disable-next-line es-x/no-number-isfinite -- safe
+// eslint-disable-next-line es/no-number-isfinite -- safe
 module.exports = Number.isFinite || function isFinite(it) {
   return typeof it == 'number' && globalIsFinite(it);
 };

packages/core-js/internals/object-assign.js

@@ -9,9 +9,9 @@ var propertyIsEnumerableModule = require('../internals/object-property-is-enumer
 var toObject = require('../internals/to-object');
 var IndexedObject = require('../internals/indexed-object');
 
-// eslint-disable-next-line es-x/no-object-assign -- safe
+// eslint-disable-next-line es/no-object-assign -- safe
 var $assign = Object.assign;
-// eslint-disable-next-line es-x/no-object-defineproperty -- required for testing
+// eslint-disable-next-line es/no-object-defineproperty -- required for testing
 var defineProperty = Object.defineProperty;
 var concat = uncurryThis([].concat);
 
@@ -31,7 +31,7 @@ module.exports = !$assign || fails(function () {
   // should work with symbols and should have deterministic property order (V8 bug)
   var A = {};
   var B = {};
-  // eslint-disable-next-line es-x/no-symbol -- safe
+  // eslint-disable-next-line es/no-symbol -- safe
   var symbol = Symbol();
   var alphabet = 'abcdefghijklmnopqrst';
   A[symbol] = 7;

packages/core-js/internals/object-create.js

@@ -69,7 +69,7 @@ hiddenKeys[IE_PROTO] = true;
 
 // `Object.create` method
 // https://tc39.es/ecma262/#sec-object.create
-// eslint-disable-next-line es-x/no-object-create -- safe
+// eslint-disable-next-line es/no-object-create -- safe
 module.exports = Object.create || function create(O, Properties) {
   var result;
   if (O !== null) {

packages/core-js/internals/object-define-properties.js

@@ -7,7 +7,7 @@ var objectKeys = require('../internals/object-keys');
 
 // `Object.defineProperties` method
 // https://tc39.es/ecma262/#sec-object.defineproperties
-// eslint-disable-next-line es-x/no-object-defineproperties -- safe
+// eslint-disable-next-line es/no-object-defineproperties -- safe
 exports.f = DESCRIPTORS && !V8_PROTOTYPE_DEFINE_BUG ? Object.defineProperties : function defineProperties(O, Properties) {
   anObject(O);
   var props = toIndexedObject(Properties);

packages/core-js/internals/object-define-property.js

@@ -5,9 +5,9 @@ var anObject = require('../internals/an-object');
 var toPropertyKey = require('../internals/to-property-key');
 
 var $TypeError = TypeError;
-// eslint-disable-next-line es-x/no-object-defineproperty -- safe
+// eslint-disable-next-line es/no-object-defineproperty -- safe
 var $defineProperty = Object.defineProperty;
-// eslint-disable-next-line es-x/no-object-getownpropertydescriptor -- safe
+// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
 var $getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
 var ENUMERABLE = 'enumerable';
 var CONFIGURABLE = 'configurable';

packages/core-js/internals/object-get-own-property-descriptor.js

@@ -7,7 +7,7 @@ var toPropertyKey = require('../internals/to-property-key');
 var hasOwn = require('../internals/has-own-property');
 var IE8_DOM_DEFINE = require('../internals/ie8-dom-define');
 
-// eslint-disable-next-line es-x/no-object-getownpropertydescriptor -- safe
+// eslint-disable-next-line es/no-object-getownpropertydescriptor -- safe
 var $getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;
 
 // `Object.getOwnPropertyDescriptor` method

packages/core-js/internals/object-get-own-property-names-external.js

@@ -1,4 +1,4 @@
-/* eslint-disable es-x/no-object-getownpropertynames -- safe */
+/* eslint-disable es/no-object-getownpropertynames -- safe */
 var classof = require('../internals/classof-raw');
 var toIndexedObject = require('../internals/to-indexed-object');
 var $getOwnPropertyNames = require('../internals/object-get-own-property-names').f;