What is the difference between running the application using

1)

node server.js 

and making a script

"start" : "node server.js" 

using

npm run start.

When i type

1)

node server.js | pino-pretty 

in terminal there is an error

pino-pretty not found

When i make

"start": "node server.js | pino-pretty" 

in package.json and type

npm run start 

in terminal it works.

So apparently there is a fundamental difference between running the application in 1 and 2.

CodePudding user response：

The difference is PATH.

Per the npm run docs:

In addition to the shell's pre-existing PATH, npm run adds node_modules/.bin to the PATH provided to scripts.

You'll find pino-pretty in node_modules/.bin.