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Password Validation Form Using JavaScript

Last Updated : 18 Apr, 2025
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The password Validation form is used to check the password requirements such as the password must have at least one Uppercase, or lowercase, number, and the length of the password. We can also check this after submitting the form but it's not recommended. We can easily check before submitting the form this can save us time.

In this article, we are going to make a Password validation form using JavaScript. Before going to start making the feature first we will talk about what functionalities we want in this project.

Functionalities we want:

  • While entering the password a message will be displayed.
  • The message will alert the user to enter the password requirements.
  • If the user doesn't enter the password according to the requirements it will show the message to enter the desired requirements.

Here is the preview of the feature that we are going to make:

passwordValidate.png
Password Validation Form

Project Structure:

- index.html
- style.css
- script.js

Example: In this example code, we have implemented the above-discussed functionality.

  • HTML Code: This file contains the structure of the feature
  • CSS Code: It defines the styles for a form container and its elements, including input fields and a submit button. Additionally, it includes styles for a password message box and error messages.
  • JavaScript Code: It handles password validation in a web form and performs the checks on the password input field and updates the corresponding password message items based on certain criteria.
HTML
CSS JavaScript

Output:


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