added is-url

is-url/is-url-tests.ts

@@ -0,0 +1,8 @@
+/// <reference path="./is-url.d.ts" />
+
+import isUrl = require('is-url');
+
+var isValid0: boolean = isUrl('https://github.com/segmentio/is-url');
+var isValid1: boolean = isUrl('hogepiyo');
+var isValid2: boolean = isUrl('');
+var isValid3: boolean = isUrl(undefined);

is-url/is-url.d.ts

@@ -0,0 +1,10 @@
+// Type definitions for is-url v1.2.1
+// Project: https://github.com/segmentio/is-url
+// Definitions by: Ryota Murohoshi <https://github.com/RyotaMurohoshi>
+// Definitions: https://github.com/RyotaMurohoshi/DefinitelyTyped
+
+declare module "is-url" {
+    export = isUrl
+
+    function isUrl(string: string): boolean;
+}