Add typings for graphql-iso-date (#23202)

* Create index.d.ts

* Create tsconfig.json

* Update index.d.ts

* add graphql-iso-date types

* fix tests

* add strict function types

types/graphql-iso-date/graphql-iso-date-tests.ts

@@ -0,0 +1,5 @@
+import { GraphQLDate, GraphQLTime, GraphQLDateTime } from "graphql-iso-date";
+
+GraphQLDate.name;
+GraphQLTime.name;
+GraphQLDateTime.name;

types/graphql-iso-date/index.d.ts

@@ -0,0 +1,11 @@
+// Type definitions for graphql-iso-date 3.3
+// Project: https://github.com/excitement-engineer/graphql-iso-date
+// Definitions by: Jason Waldrip <https://github.com/jwaldrip>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.3
+
+import { GraphQLScalarType } from "graphql";
+
+export const GraphQLDate: GraphQLScalarType;
+export const GraphQLTime: GraphQLScalarType;
+export const GraphQLDateTime: GraphQLScalarType;

types/graphql-iso-date/tsconfig.json

@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "graphql-iso-date-tests.ts"
+    ]
+}

types/graphql-iso-date/tslint.json

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