How to easily verify correct npm dependencies installed?

Question

How can I know when to prompt user to run npm install if there are any unmet package.json dependencies?

I would like to do this, because if any re

Answer 1

Found this today. Not sure if your still need this.

https://www.npmjs.com/package/check-dependencies

npm install check-dependencies --save-dev

Install this package and save to your package.json.

require('check-dependencies')(config, callback);

config is the following object, which is then passed to the callback.

{
    status: number,      // 0 if successful, 1 otherwise
    depsWereOk: boolean, // true if dependencies were already satisfied
    log: array,          // array of logged messages
    error: array,        // array of logged errors
}