Validate HTML file in node using html-validator

test.js

const fs = require("fs")
const validator = require("html-validator")
const validateFile = (file) => {
  fs.readFile(file, "utf-8", (err, content) => {
    if (err) throw err;
    console.log("Validating:", file);
    validator({
     data: content,
     format: "text",
    }, (err, report) => {
      if (err) throw err;
      console.log(file, report);
    });
  });
};

validateFile("index.html");