我的tsconfig.json中的哪個選項導致錯誤？

Question

我正在學習打字稿。

interface FooOptions { 
    x: string; 
    y: string; 
} 

function getFoo(opt: FooOptions) { 
    return opt.x + opt.y; 
} 

export {getFoo, FooOptions}; 

運行node_modules/.bin/tsc提供了以下錯誤：

$ node_modules/.bin/tsc 
t.ts(6,22): error TS4078: Parameter 'opt' of exported function has or is using private name 'FooOptions'. 

但node_modules/.bin/tsc t.ts成功運行。

根據the document：

By invoking tsc with no input files, in which case the compiler searches for the tsconfig.json file starting in the current directory and continuing up the parent directory chain.

哪個選項在我tsconfig.json導致錯誤？那錯誤是什麼意思？

{ 
    "compilerOptions": { 
    "target": "es5", 
    "outDir": "dist", 
    "module": "commonjs", 
    "declaration": true, 
    "noImplicitAny": true, 
    "removeComments": true, 
    "moduleResolution": "node", 
    "sourceMap": true, 
    "inlineSources": true 
    }, 
    "exclude": [ 
    "node_modules", 
    "dist" 
    ] 
} 

Answer 1

您需要導出接口，以及：

export interface FooOptions { 
    x: string; 
    y: string; 
}