How does NodeJS create directories and files
This article introduces the relevant knowledge of "how to create directories and files in NodeJS". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!
1. Use fs.mkdir fs.writeFile to create directories and files respectively.
2. Mkdir () can accept three parameters.
The first is the path, the second is an optional permission, which we generally do not need, the third parameter is a callback function, we can do some processing in this.
/ * learnNode.js * / let fs = require ('fs'); fs.mkdir (' js', (err) = > {if (err) {console.log ('error')} else {console.log ('no error')})
3. WriteFile () can accept four parameters.
The first is the path, the second is the contents of the file, the third is optional to represent permissions, and the fourth is the callback function.
/ * learnNode.js * / let fs = require ('fs'); fs.writeFile ('. / js/newJs.js','console.log ("write this"), (err) = > {if (err) {console.log ('error')} else {console.log ('no error')}) this is the end of how NodeJS creates directories and files. Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!