小编kam*_*myl的帖子

我在我的项目中使用TypeScript 2.我想使用一些js库,但也使用该库的类型.我可以用简单的方式安装类型npm install @types/some-library.我不确定我应该--save还是--save-dev他们.在我看来,甚至DefinetelyTyped GitHub自述文件都提到了两个版本,但从未解释过它们.我认为@types应该在devDependencies,因为开发需要类型,而不是在运行时使用,但我看到很多次@types dependencies.我糊涂了.

我应该如何决定@ types/*是否进入dependencies或devDependencies？实际上是否有一些或多或少的官方指示？

在C++中有一个叫做朋友类的东西.据我所知,TypeScript/JavaScript中没有这样的东西.有没有办法在TypeScript/JavaScript中模拟友元类的这种行为？

举个为什么,什么我尝试做的更好环境(如果需要的话),我做一些小游戏的乐趣(和学习的东西),并尝试做这个.目前我只使用公共方法,一切正常,但我想将这些方法的可访问性限制在另一个类中.我使用TypeScript,如果有帮助的话.

我正在尝试使用 TypeScript (^2.9.2) 和 Webpack (^4.12.1) 从头开始​​设置我的新 Screeps（游戏）项目。如何正确设置源映射？我做了什么：

1. "sourceMap": true,在 tsconfig.json 中设置
2. devtool: 'inline-source-map',在 webpack.config.js 中设置。我想内联是 Screeps 的必需品吗？
3. 在 webpack 配置中设置loader: "source-map-loader",为test: /\.ts$/, enforce: 'pre',不丢失 TS 源映射。

在我的 main.ts 中，现在只是console.log(foo);导致：

ReferenceError: foo is not defined
    at Object../src/main.ts:98:13
    at __webpack_require__:20:30
    at eval:84:18
    at main:87:10
    at eval:105:4
    at Object.<anonymous>:2:143759
    at Object.r.run:2:144268```

Screeps 客户端控制台就是这种情况。在 Firefox 中，我只看到foo is not defined没有任何更具体的信息。

有什么办法可以/src/main.ts:1:13在堆栈跟踪中的某个地方获得（正确的行号）吗？这看起来似乎没有任何源映射，但在 main.js 构建的底部有一个：

//# sourceMappingURL=data:application/json;charset=utf-8;base64,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