http://qiita.com/vvakame/items/23b02e950ca307b9e674

.gitignore

package-lock.json
node_modules/
*.js

README.md

npx sample

$ npx -p https://gist.github.com/vvakame/4d882bb3f611c8c14ab86c5d18d8a9eb run-tsc

package.json

{
  "name": "4d882bb3f611c8c14ab86c5d18d8a9eb",
  "version": "1.0.0",
  "private": true,
  "description": "npx example",
  "bin": {
    "run-tsc": "run.sh"
  },
  "repository": {
    "type": "git",
    "url": "git+https://gist.github.com/4d882bb3f611c8c14ab86c5d18d8a9eb.git"
  },
  "keywords": [],
  "author": "vvakame",
  "license": "MIT",
  "bugs": {
    "url": "https://gist.github.com/4d882bb3f611c8c14ab86c5d18d8a9eb"
  },
  "homepage": "https://gist.github.com/4d882bb3f611c8c14ab86c5d18d8a9eb",
  "devDependencies": {
    "typescript": "2.4.1"
  }
}

repro.ts

interface Named {
    name: string;
}

function parrot<T extends Named>(obj: T): T {
    return obj;
}

// A
parrot({
    name: "TypeScript",
});
// B
parrot({
    name: "TypeScript",
    age: 5,
});
// C
parrot({
    name: "TypeScript",
    age: function () { },
});
// D
parrot({
    name: "TypeScript",
    sayHello() {
        console.log(`Hello, ${this.name}`);
    },
});

run.sh

#! /bin/bash -eux

cd $(dirname $0)
cd $(dirname $(readlink $0))
tsc

tsconfig.json

{
  "compilerOptions": {
    "target": "es5",
    "module": "commonjs",
    "strict": true
  }
}