read line file js using fs code example
Example 1: get lines as list from file node js
const fs = require('fs');
fs.readFile('file.txt', function(err, data) {
if(err) throw err;
const arr = data.toString().replace(/\r\n/g,'\n').split('\n');
for(let i of arr) {
console.log(i);
}
});
Example 2: read file in nodejs using fs
let myFile = "./myText.txt";
const fs = require("fs");
app.all('/test', async (req, res) => {
try {
const readData = fs.readFileSync(myFile, 'utf8');
if (readData) {
res.send(readData)
}
} catch (error) {
res.send("something is wrong", error)
}
})
Example 3: node.js read text file line by line
const readline = require('readline');
const readInterface = readline.createInterface({
input: fs.createReadStream('name.txt'),
output: process.stdout,
console: false
});
for await (const line of readInterface) {
console.log(line);
}
readInterface.on('line', function(line) {
console.log(line);
});