arrow function

extensions/typescript-basics/language-configuration.json

@@ -215,6 +215,12 @@
 			"action": {
 				"indent": "outdent"
 			}
-		}
+		},
+		{
+			"beforeText": "^\\s*(var|const|let)\\s+\\w+\\s*=\\s*\\(.*\\)\\s*=>\\s*$",
+			"action": {
+				"indent": "indent"
+			}
+		},
 	]
 }

src/vs/editor/contrib/indentation/test/browser/indentation.test.ts

@@ -545,9 +545,9 @@ suite('`Full` Auto Indent On Type - TypeScript/JavaScript', () => {
 
 	// Failing tests from issues...
 
-	test.skip('issue #116843: indent after arrow function', () => {
+	test('issue #208215: indent after arrow function', () => {
 
-		// https://github.com/microsoft/vscode/issues/116843
+		// https://github.com/microsoft/vscode/issues/208215
 
 		const model = createTextModel("", languageId, {});
 		disposables.add(model);
@@ -562,11 +562,28 @@ suite('`Full` Auto Indent On Type - TypeScript/JavaScript', () => {
 				'const add1 = (n) =>',
 				'    ',
 			].join('\n'));
-			viewModel.type('n + 1;');
+		});
+	});
+
+	test.skip('issue #116843: indent after arrow function', () => {
+
+		// https://github.com/microsoft/vscode/issues/116843
+
+		const model = createTextModel("", languageId, {});
+		disposables.add(model);
+
+		withTestCodeEditor(model, { autoIndent: "full" }, (editor, viewModel, instantiationService) => {
+
+			registerLanguage(instantiationService, languageId, Language.TypeScript, disposables);
+
+			viewModel.type([
+				'const add1 = (n) =>',
+				'    n + 1;',
+			].join('\n'));
 			viewModel.type("\n", 'keyboard');
 			assert.strictEqual(model.getValue(), [
 				'const add1 = (n) =>',
-				'	n + 1;',
+				'    n + 1;',
 				'',
 			].join('\n'));
 		});

src/vs/editor/test/common/modes/supports/javascriptOnEnterRules.ts

@@ -40,4 +40,8 @@ export const javascriptOnEnterRules = [
 		beforeText: /^\s+([^{i\s]|i(?!f\b))/,
 		action: { indentAction: IndentAction.Outdent }
 	},
+	{
+		beforeText: /^\s*(var|const|let)\s+\w+\s*=\s*\(.*\)\s*=>\s*$/,
+		action: { indentAction: IndentAction.Indent }
+	},
 ];