fs open or create file code example

Example 1: node open file

const fs = require("fs");

// __dirname means relative to script. Use "./data.txt" if you want it relative to execution path.
fs.readFile(__dirname + "/data.txt", (error, data) => {
    if(error) {
        throw error;
    }
    console.log(data.toString());
});

Example 2: fs create or edit file

//Edit file or creates if doesnt exist
 const fs = require('fs');
 fs.appendFile(‘<fileName>’,<content>,callbackFunction)