Validating an email address is a common operation when processing a form. Whether it’s for contact forms, signup forms, or login forms, it’s important to ensure that the email address entered by the user is valid. In this blog, we will explore the correct way to validate an email address using plain JavaScript. Rules for Email Validation An email address is composed of two parts: the local part and the domain part....
In this blog post, we will learn how to validate input data in your Express endpoints using the express-validator package. Specifically, we will look at how to validate the name, email, and age parameters in a POST endpoint. Let’s start by setting up our Express server and configuring it to parse incoming JSON data: const express = require('express'); const { check, validationResult } = require('express-validator'); const app = express(); app.use(express.json()); Next, let’s define our POST endpoint and perform validation on the input data:...