How does NodeJS append new content to a file

This article mainly introduces "how to add new content to the file by NodeJS". In the daily operation, I believe that many people have doubts about how to add new content to the file in NodeJS. The editor has consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the doubt of "how to add new content in the file by NodeJS". Next, please follow the editor to study!

Description

1. You can use fs.appendFile to add content.

2. AppendFile () can accept three parameters, the first is the path, the second is the content, and the third is the callback function, which can be executed by node learnNode.js.

Example

/ * learnNode.js * / let fs = require ('fs'); fs.appendFile (' newJs.txt',' I am the appended content', (err) = > {if (err) {console.log ('error')} else {console.log ('appended content)}}) so far, the study on "how to add new content to the file by NodeJS" is over, hoping to solve everyone's doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!