Node.js File System Part2

We will take some example to open file and do operation like read and write operation on file system.

Here we will create a JavaScript file which named as "main.js" which is having the below code to open the file input.txt create in previous chapter to read and write operations.
File: main.js

Open File Code

Now we open Node.js command prompt and run the main.js file as given below:-
node main.js

Open File Code output

Node.js File Information Method

Below is the syntax to run method to get file information.
fs.stat(path,callback)

Parameter explanation:

(1)Path:-This parameter is a string which is having file name which include a path.

(2)flags:-This is the callback function which gets two arguments (err, stats) where stats is an object of fs.Stats type.

Node.js fs.Stats class Methods

1	stats.isfile()	This method will returns true if file type is of a simple file.
2	stats.isdirectory()	This method will returns true if file type is of a directory.
3	stats.isblockdevice()	This method will return true if file type is of a block device.
4	stats.ischaracterdevice()	This method will return true if file type is of a character device.
5	stats.issymboliclink()	This method will return true if file type is of a symbolic link.
6	stats.isfifo()	This method will retunr true if file type is of fifo.
7	stats.issocket()	This methos will retunr true if file type is of asocket.

Other Important Questions

Node.js File Structure

Parts of Node.js

Install Node.js Linux

Node.js First Example

Node.js Globals

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