如何使用package.json运行ts脚本?

Question

我尝试只用一个package.json文件运行打字稿文件。因此，运行打字稿文件的最低设置。

我只有一个单独的文件：index.ts：

console.clear();
console.log("nic to see you!!");

和 package.json 文件：

{
"name": "Todo",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo "Error: no test specified" && exit 1",
"start": "node index.js"
},
"keywords": [],
"author": "",
"license": "ISC"
}

但是如果我尝试这样做：

npm 启动，我会得到这个错误：

Error: Cannot find module 'D:Mijn DocumentsUDEMYTypeScriptTodoindex.js'
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
at Function.Module._load (internal/modules/cjs/loader.js:562:25)
at Function.Module.runMain (internal/modules/cjs/loader.js:831:12)
at startup (internal/bootstrap/node.js:283:19)
at bootstrapNodeJSCore (internal/bootstrap/node.js:622:3)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! Todo@1.0.0 start: `node index.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the Todo@1.0.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm WARN Local package.json exists, but node_modules missing, did you mean to install?
npm ERR! A complete log of this run can be found in:
npm ERR!     C:UsersUser.USER-PCAppDataRoamingnpm-cache_logs2019-12-24T11_22_12_024Z-debug.log
PS D:Mijn DocumentsUDEMYTypeScriptTodo>

所以我的问题是：我必须更改它将编译什么？

谢谢

好吧，我现在是这样的：

packagege.json：

{
"name": "Todo",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo "Error: no test specified" && exit 1",
"build":"tsc -p ./src", 
"start": "npm run build -- -w"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"ts-node": "^8.5.4",
"typescript": "^3.7.4"
}
}

我安装了打字稿

我做：npm 开始。我仍然收到此错误：

npm run build -- -w

> Todo@1.0.0 build D:Mijn DocumentsUDEMYTypeScriptTodo
> tsc -p ./src "-w"
error TS5057: Cannot find a tsconfig.json file at the specified directory: './src'.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! Todo@1.0.0 build: `tsc -p ./src "-w"`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the Todo@1.0.0 build script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR!     C:UsersUser.USER-PCAppDataRoamingnpm-cache_logs2019-12-24T11_33_38_340Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! Todo@1.0.0 start: `npm run build -- -w`
npm ERR! Exit status 1

好吧，我现在是这样的：

{
"name": "Todo",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo "Error: no test specified" && exit 1",
"build": "tsc main.ts dist/",
"start": "npm run build -- -w"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"ts-node": "^8.5.4",
"typescript": "^3.7.4"
}
}

如果我这样做：npm 运行。我看到这个输出：

> Todo@1.0.0 build D:Mijn DocumentsUDEMYTypeScriptTodo
> tsc main.ts dist/ "-w"
[1:46:58 PM] Starting compilation in watch mode...
error TS6053: File 'dist/.ts' not found.
[1:46:59 PM] Found 1 error. Watching for file changes.

好吧，我现在看到这个：

> Todo@1.0.0 build D:Mijn DocumentsUDEMYTypeScriptTodo
> tsc -p ./ "-w"
[2:00:31 PM] Starting compilation in watch mode...
[2:00:34 PM] Found 0 errors. Watching for file changes.

但是我在哪里可以看到结果呢？去一些端口会很好，比如：localhost：4200 在浏览器中，但怎么做呢？

Answer 1

尝试在终端中键入内容，如下所示：

ts-node ./src/index.ts

或者，尝试对"开始"脚本进行以下修改：

"start": "ts-node ./src/index.ts"

Answer 2

谢谢大家！！

诀窍是包中的这个.json：

"start": "tsc-watch --onsuccess "node dist/index.js""