[element-closest] add types (#43264)

types/element-closest/element-closest-tests.ts

@@ -0,0 +1,25 @@
+import elementClosest from 'element-closest';
+
+// $ExpectError
+elementClosest(null);
+
+// $ExpectError
+elementClosest(undefined);
+
+// $ExpectError
+elementClosest(100);
+
+// $ExpectError
+elementClosest('test');
+
+// $ExpectError
+elementClosest(false);
+
+// $ExpectError
+elementClosest(true);
+
+// $ExpectError
+elementClosest({});
+
+// $ExpectType void
+elementClosest(window);

types/element-closest/index.d.ts

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+// Type definitions for element-closest 3.0
+// Project: https://github.com/jonathantneal/closest#readme
+// Definitions by: hikiko4ern <https://github.com/hikiko4ern>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.7
+
+declare function polyfill(window: Window): void;
+
+export = polyfill;

types/element-closest/tsconfig.json

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

types/element-closest/tslint.json

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