Adding type defintion for murmurhash module of npm (#25413)

types/murmurhash/index.d.ts

@@ -0,0 +1,29 @@
+// Type definitions for murmurhash 0.0
+// Project: https://github.com/perezd/node-murmurhash
+// Definitions by: Arne Schubert <https://github.com/atd-schubert>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+export = murmurhash;
+
+/**
+ * JS Implementation of MurmurHash3 (r136) (as of May 20, 2011)
+ *
+ * @param key - ASCII only
+ * @param seed - Positive integer only
+ * @return - 32-bit positive integer hash
+ */
+declare function murmurhash(key: string, seed: number): number;
+
+declare namespace murmurhash {
+    // Circular reference from murmurhash
+    function v3(key: string, seed: number): number;
+
+    /**
+     * JS Implementation of MurmurHash2
+     *
+     * @param str - ASCII only
+     * @param seed - Positive integer only
+     * @return - 32-bit positive integer hash
+     */
+    function v2(str: string, seed: number): number;
+}

types/murmurhash/murmurhash-tests.ts

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+import murmurhash = require('murmurhash');
+
+const stringValue = "test";
+let numberValue = 123;
+
+numberValue = murmurhash(stringValue, numberValue);
+numberValue = murmurhash.v2(stringValue, numberValue);
+numberValue = murmurhash.v3(stringValue, numberValue);

types/murmurhash/tsconfig.json

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

types/murmurhash/tslint.json

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+{ "extends": "dtslint/dt.json" }