I developed a package for example: testlab, and its package.json is:
{
    "devDependencies": {
    "mocha": "^2.0.0"
  },
  "name": "@aab/testlab",
  "version": "2.6.0",
  "description": "example for npm",
  "main": ".\\dest\\main.js",
  "dependencies": {
    "gulp": "^3.9.1",
    "gulp-changed": "^1.3.2"
  },
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [
    "test"
  ],
  "author": "aab <aab@exmaple.com>",
  "license": "ISC"
}
Say I included mocha in devDendencies, and then I created a local directory called e.g. c:\example and used
npm install @aab/testlab --only=dev
to get my package under c:\example, but when I looked at c:\example\node_modules, I did not find mocha package is installed. I also tried other command like
npm install @aab/testlab
still no luck. I used NodeJS v4.6.0 and npm 4.0.2. Although nodeJS seems a little old, could any one help me that?
 
    