SyntaxError: Unexpected token

products.js

// For some reason this code yields the following error upon execution:

// undefined: 1
//
// ^
// SyntaxError: Unexpected token

// Commenting out the JSON.parse() solves the error, but I don't understand what's wrong with the line

var fs = require('fs');
var files = fs.readdirSync('./output/');
var products = [];

for (var i = 0; i < files.length; i++) {
  var path = './output/' + files[i];
  var product = JSON.parse(fs.readFileSync(path, 'utf8'));
  products.push(product);
}

exports.products = products;