nodejs open file

1// load fs
2const fs = require("fs");
3// read the file
4const content = fs.readFileSync("./my_file.txt");
5// print it
6console.log(content.toString());

1const fs = require('fs');
2
3fs.readFile('my-file.txt', 'utf8', function(err, data) {
4    if (err) throw err;
5    console.log(data);
6});

1let myFile = "./myText.txt";
2const fs = require("fs");
3		
4app.all('/test', async (req, res) => {
5	try {
6		const readData = fs.readFileSync(myFile, 'utf8');
7		if (readData) {
8			res.send(readData)
9		}
10	} catch (error) {
11		res.send("something is wrong", error)
12	}
13})

1fs.readFile('filename', function read(err, data) {
2    if (err) {
3        throw err;
4    }
5    var content = data;
6  
7    console.log(content);  
8   
9});

1fs = require('fs')
2fs.readFile('/etc/hosts', 'utf8', function (err,data) {
3  if (err) {
4    return console.log(err);
5  }
6  console.log(data);
7});