The Node.js filesystem module ‘fs’ has a readFileSync function that returns the entire contents of a file directly into a program variable. Whilst this call can be convenient, explain why it is not recommended inside a Web App server. code example

var fs = require('fs');

fs.readFile('my-file.txt', 'utf8', function(err, data) {
    if (err) throw err;
    console.log(data);
});