Looking at axios documents, pipe, and fs respectively represent

Today, I studied vue+axios for front-end development. When I looked at the axios document, I found that there was a way to get remote pictures in the document. The original text of the document is as follows:
/ / get remote images
axios ({
method:"get",
url:" http://bit.ly/2mTM3nY",
responseType:"stream"
})
.then (function (response) {
response.data.pipe (fs.createWriteStream ("ada_lovelace.jpg"))
});

I am afraid of adding a picture if the format is out of order:

clipboard.png

so the question is, what exactly are pipe and fs in the code response.data.pipe (fs.createWriteStream ("ada_lovelace.jpg"))? Console printing did not find these two parameters, ask for advice!

Mar.15,2021

pipe is the
fs module that converts response.data to stream file-system is Node.js .

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3f13f-2c491.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3f13f-2c491.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?