node.js child process - difference between spawn & fork

Question

This might seem like a basic question, but I could not find any documentation :

What is the difference between forking & spawning a node.js process? I have read

Answer 1

TLDR

Spawn

When a spawn is created - It creates a streaming interface between parent and child process.

streaming interface means - buffering data in binary format in ONE TIME

Fork

When a fork is created - It creates a communication channel between parent and child process

communication channel means - messaging

Difference

Well both look kind of doing same data transfer, Except below difference

spawn will be useful when you want to do continuous data buffer in binary/encoding format , Eg - Transfer 1gb video file,image,log files in ONE TIME

fork will be useful when you want to do messaging Eg - JSON or XML data messaging

Conslusion

spawn should be used for streaming big data/files/images FROM spawn process TO parent process

fork should be used for doing Json/Xml messaging .

• Eg suppose 10 fork process are created from parent.
• and each process performs some operation
• and each process on completing operation will send message to parent 'process no.4 done','process no.8 done'