Solidity 2022: What does the following code do?
.send({ from: userAccount })
.on("receipt", function(receipt) })
.on("error", function(error)){}

Question

What does the following code do? 
.send({ from: userAccount })
.on("receipt", function(receipt) })
.on("error", function(error)){}

kotrotko · Accepted Answer

It send something from userAccount to blockchain and handle the result (receipt or error)

What does the following code do? .send({ from: userAccount }) .on("receipt", function(receipt) }) .on("error", function(error)){}