Encountering a ReferenceError message that says "readFile is not defined

Question

Encountering a ReferenceError message that says "readFile is not defined

Currently, I am in the process of learning Node.js and encountering an issue.

When I type 'node .' in the terminal, I receive a ReferenceError: readFile is not defined message.

Below is the code snippet:


const express = require("express");

const app = express();

app.get("/", (request, response) => {
  readFile("./home.html", "utf8", (err, html) => {
    if (err) {
      response.status(500).send("Sorry, out of order");
    }

    response.send(html);
  });
});

app.listen(process.env.PORT || 3000, () =>
  console.log("http://localhost:3000")
);

javascript node.js express

Answer 1

Answer №1

To successfully read a file in your code, you must first import the file system module:

const fs = require('fs');
// ...

fs.readFile('...')

Answer 2

To successfully read a file in your code, you must first import the file system module:

const fs = require('fs');
// ...

fs.readFile('...')

Answer 3

Answer №2

When working with Node.js, the file system module must be utilized to perform operations such as reading and writing files. To begin using this module, you need to import it in an ES6 style or require it. The example below demonstrates how to use the file system in Node.js:

const fs = require('fs')
fs.readFile('Example.txt', 'utf8', function(err, data){
  
// Display the content of the file
console.log(data);
});

Answer 4

When working with Node.js, the file system module must be utilized to perform operations such as reading and writing files. To begin using this module, you need to import it in an ES6 style or require it. The example below demonstrates how to use the file system in Node.js:

const fs = require('fs')
fs.readFile('Example.txt', 'utf8', function(err, data){
  
// Display the content of the file
console.log(data);
});

Encountering a ReferenceError message that says "readFile is not defined

Answer №1

Answer №2

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