Build tooling: Remove support for IE11

.github/workflows/static-checks.yml

@@ -42,9 +42,6 @@ jobs:
             - name: Lint JavaScript and Styles
               run: npm run lint
 
-            - name: Lint ES5 built files (IE11)
-              run: npx eslint --parser-options=ecmaVersion:5 --no-eslintrc --no-ignore ./build/**/*.js
-
             - name: Type checking
               run: npm run build:package-types
 

package.json

@@ -150,7 +150,7 @@
 		"babel-plugin-react-native-platform-specific-extensions": "1.1.1",
 		"babel-plugin-transform-remove-console": "6.9.4",
 		"benchmark": "2.1.4",
-		"browserslist": "4.15.0",
+		"browserslist": "4.16.5",
 		"chalk": "4.0.0",
 		"commander": "4.1.0",
 		"concurrently": "3.5.0",

packages/babel-preset-default/index.js

@@ -16,7 +16,9 @@ module.exports = ( api ) => {
 	} );
 
 	const getPresetEnv = () => {
-		const opts = {};
+		const opts = {
+			include: [ 'proposal-nullish-coalescing-operator' ],
+		};
 
 		if ( isTestEnv ) {
 			opts.targets = {

packages/babel-preset-default/test/__snapshots__/index.js.snap

@@ -1,67 +1,23 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
 exports[`Babel preset default transpilation works properly 1`] = `
-"import _asyncToGenerator from \\"@babel/runtime/helpers/asyncToGenerator\\";
-import _awaitAsyncGenerator from \\"@babel/runtime/helpers/awaitAsyncGenerator\\";
-import _wrapAsyncGenerator from \\"@babel/runtime/helpers/wrapAsyncGenerator\\";
-import _regeneratorRuntime from \\"@babel/runtime/regenerator\\";
-describe('Babel preset default', function () {
-  function foo() {
-    return _foo.apply(this, arguments);
+"describe('Babel preset default', () => {
+  async function* foo() {
+    await 1;
+    yield 2;
   }
 
-  function _foo() {
-    _foo = _wrapAsyncGenerator( /*#__PURE__*/_regeneratorRuntime.mark(function _callee() {
-      return _regeneratorRuntime.wrap(function _callee$(_context) {
-        while (1) {
-          switch (_context.prev = _context.next) {
-            case 0:
-              _context.next = 2;
-              return _awaitAsyncGenerator(1);
-
-            case 2:
-              _context.next = 4;
-              return 2;
-
-            case 4:
-            case \\"end\\":
-              return _context.stop();
-          }
-        }
-      }, _callee);
-    }));
-    return _foo.apply(this, arguments);
-  }
-
-  test('support for async generator functions', /*#__PURE__*/_asyncToGenerator( /*#__PURE__*/_regeneratorRuntime.mark(function _callee2() {
-    var generator;
-    return _regeneratorRuntime.wrap(function _callee2$(_context2) {
-      while (1) {
-        switch (_context2.prev = _context2.next) {
-          case 0:
-            generator = foo();
-            _context2.t0 = expect;
-            _context2.next = 4;
-            return generator.next();
-
-          case 4:
-            _context2.t1 = _context2.sent;
-            (0, _context2.t0)(_context2.t1).toEqual({
-              done: false,
-              value: 2
-            });
-
-          case 6:
-          case \\"end\\":
-            return _context2.stop();
-        }
-      }
-    }, _callee2);
-  })));
-  test('support for optional chaining', function () {
+  test('support for async generator functions', async () => {
+    const generator = foo();
+    expect(await generator.next()).toEqual({
+      done: false,
+      value: 2
+    });
+  });
+  test('support for optional chaining', () => {
     var _obj$foo, _obj$foo2;
 
-    var obj = {
+    const obj = {
       foo: {
         bar: 42
       }

packages/block-editor/src/components/block-navigation/index.js

@@ -32,7 +32,7 @@ export default function BlockNavigation( {
 			const _selectedBlockClientId = getSelectedBlockClientId();
 			const _rootBlocks = __unstableGetClientIdsTree();
 			const _rootBlock =
-				selectedBlockClientId && ! isArray( selectedBlockClientId )
+				_selectedBlockClientId && ! isArray( _selectedBlockClientId )
 					? __unstableGetClientIdWithClientIdsTree(
 							getBlockHierarchyRootClientId(
 								_selectedBlockClientId

packages/browserslist-config/index.js

@@ -1,7 +1,6 @@
 // browserslist-config/index.js
 module.exports = [
 	'> 1%',
-	'ie >= 11',
 	'last 1 Android versions',
 	'last 1 ChromeAndroid versions',
 	'last 2 Chrome versions',

packages/components/src/resizable-box/resize-tooltip/utils.js

@@ -69,6 +69,7 @@ export function useResizeLabel( {
 	 * Cached dimension values to check for width/height updates from the
 	 * sizes property from useResizeAware()
 	 */
+	const { width, height } = sizes;
 	const heightRef = useRef( height );
 	const widthRef = useRef( width );
 
@@ -78,8 +79,6 @@ export function useResizeLabel( {
 	 */
 	const moveTimeoutRef = useRef();
 
-	const { width, height } = sizes;
-
 	const unsetMoveXY = () => {
 		/*
 		 * If axis is controlled, we will avoid resetting the moveX and moveY values.