如何使用npm脚本运行js文件？

Question

我无法让npm工作.我的package.json文件有

"scripts": { "build": "build.js" }

我在一个只有console.logs的文件夹中有一个build.js文件.

我跑的时候

npm run build

我收到了错误

The system cannot execute the specified program.

npm ERR! Windows_NT 6.1.7601
npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "run" "build"
npm ERR! node v4.1.1
npm ERR! npm  v3.3.5
npm ERR! code ELIFECYCLE

如果我移动build.js文件并将我的package.json文件更改为具有子文件夹

"scripts": { "build": "build/build.js" }

然后我得到了错误

'build' is not recognized as an internal or external command, operable program or batch file.

出了什么问题？我正在复制示例文档.

Answer 1

{ "scripts" :
  { "build": "node build.js"}
}

npm run build 要么 npm run-script build

{
  "name": "build",
  "version": "1.0.0",
  "scripts": {
    "start": "node build.js"
  }
}

npm start

注意:你错过了{ brackets }和node命令

文件夹结构很好:

+ build
  - package.json
  - build.js