Merge pull request #25894 from pe8ter/just-extend

Add typings for just-extend.

types/just-extend/index.d.ts

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+// Type definitions for just-extend 1.1
+// Project: https://github.com/angus-c/just#readme
+// Definitions by: Peter Safranek <https://github.com/pe8ter>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.2
+
+declare function extend(obj1: object, ...objn: any[]): object;
+
+declare function extend(deep: boolean, obj1: object, ...objn: any[]): object;
+
+export = extend;

types/just-extend/just-extend-tests.ts

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+import extend = require("just-extend");
+
+// Pass single `object`.
+extend({}); // $ExpectType object
+extend([]); // $ExpectType object
+extend(() => {}); // $ExpectType object
+
+// Pass single `object`, then `any`.
+extend({}, 0); // $ExpectType object
+extend({}, ""); // $ExpectType object
+extend({}, false); // $ExpectType object
+extend({}, null); // $ExpectType object
+extend({}, undefined); // $ExpectType object
+extend({}, {}); // $ExpectType object
+extend({}, []); // $ExpectType object
+extend({}, () => {}); // $ExpectType object
+
+// Pass variadic args.
+extend({}, 0, "", false, null, undefined, {}, [], () => {}); // $ExpectType object
+
+// Pass `boolean`, then single `object`.
+extend(true, {}); // $ExpectType object
+extend(true, []); // $ExpectType object
+extend(true, () => {}); // $ExpectType object
+
+// Pass `boolean`, single `object`, then `any`.
+extend(true, {}, 0); // $ExpectType object
+extend(true, {}, ""); // $ExpectType object
+extend(true, {}, false); // $ExpectType object
+extend(true, {}, null); // $ExpectType object
+extend(true, {}, undefined); // $ExpectType object
+extend(true, {}, {}); // $ExpectType object
+extend(true, {}, []); // $ExpectType object
+extend(true, {}, () => {}); // $ExpectType object
+
+// Pass `boolean`, then variadic args.
+extend(true, {}, 0, "", false, null, undefined, {}, [], () => {}); // $ExpectType object
+
+// Incorrect extendee `object`.
+extend(); // $ExpectError
+extend(0); // $ExpectError
+extend(""); // $ExpectError
+extend(false); // $ExpectError
+extend(null); // $ExpectError
+extend(undefined); // $ExpectError
+
+// Pass `boolean` with incorrect extendee `object`.
+extend(true, 0); // $ExpectError
+extend(true, ""); // $ExpectError
+extend(true, false); // $ExpectError
+extend(true, null); // $ExpectError
+extend(true, undefined); // $ExpectError

types/just-extend/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",
+        "just-extend-tests.ts"
+    ]
+}

types/just-extend/tslint.json

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