Add types for langmap (#37262)

* Add types for langmap

* Fixed export

* Lint

types/langmap/index.d.ts

@@ -0,0 +1,11 @@
+// Type definitions for langmap 0.0
+// Project: https://github.com/mozilla/language-mapping-list
+// Definitions by: Gábor Balogh <https://github.com/grabofus>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.7
+
+import { LanguageMappingList } from './types';
+
+declare const langmap: LanguageMappingList;
+
+export = langmap;

types/langmap/langmap-tests.ts

@@ -0,0 +1,13 @@
+// tslint:disable:no-duplicate-imports
+
+import langmap1 from 'langmap';
+import * as langmap2 from 'langmap';
+
+const val1 = langmap1['en-US']; // { nativeName: string, englishName: string }
+const val2 = langmap2['en-US']; // { nativeName: string, englishName: string }
+
+val1.englishName;
+val1.nativeName;
+
+val2.englishName;
+val2.nativeName;

types/langmap/tsconfig.json

@@ -0,0 +1,25 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "esModuleInterop": true,
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictFunctionTypes": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "langmap-tests.ts",
+        "types.d.ts"
+    ]
+}

types/langmap/tslint.json

@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }

types/langmap/types.d.ts

@@ -0,0 +1,8 @@
+export interface Language {
+    englishName: string;
+    nativeName: string;
+}
+
+export interface LanguageMappingList {
+    [language: string]: Language;
+}