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Javascript - Simple Password Validation


In this tutorial we will create a Simple Password Validation using Javascript. JavaScript is a scripting or programming language that allows you to implement complex things on web pages. It is a text-based programming language meant to run as part of a web-based application. It is an interpreted programming language that has a capabilities of Object-Oriented. So Let's do the coding...

Getting started:

This is the link for the bootstrap that i used for the layout design https://getbootstrap.com/.

The Main Interface

This code contains the interface of the application. To create this just write these block of code inside the text editor and save this as index.html.

Javascript - Simple Password Validation


X Must have one capital letter
X Must have a number digit
X Must be a 12 characters long

Creating the Script

This code contains the script of the application. This code will validate the password inputs to ensure security of information. To do this just copy and write these block of codes as shown below inside the text editor and save it as script.js inside the js folder. function CheckPassword(){ var chk_capital = document.getElementById('chk_capital'); var chk_number = document.getElementById('chk_number'); var chk_length = document.getElementById('chk_length'); var bool_capital; var bool_number; var bool_length; var password = document.getElementById('password'); if(password.value.length > 12){ chk_length.removeAttribute('class'); chk_length.setAttribute('class', 'alert-success'); chk_length.innerHTML = "✔ Must be a 12 characters long"; bool_length = true; }else{ chk_length.removeAttribute('class'); chk_length.setAttribute('class', 'alert-danger'); chk_length.innerHTML = "X Must be a 12 characters long"; bool_length = false; } if(password.value.search(/[0-9]/) > 0){ chk_number.removeAttribute('class'); chk_number.setAttribute('class', 'alert-success'); chk_number.innerHTML = "✔ Must have a number digit"; bool_number = true; }else{ chk_number.removeAttribute('class'); chk_number.setAttribute('class', 'alert-danger'); chk_number.innerHTML = "X Must have a number digit"; bool_number = false; } if(password.value.match(/[A-Z]/)){ chk_capital.removeAttribute('class'); chk_capital.setAttribute('class', 'alert-success'); chk_capital.innerHTML = "✔ Must have one capital letter"; bool_capital = true; }else{ chk_capital.removeAttribute('class'); chk_capital.setAttribute('class', 'alert-danger'); chk_capital.innerHTML = "X Must have one capital letter"; bool_capital = false; } if(bool_capital && bool_length && bool_number){ document.getElementById('btn_check').innerHTML = "Password Validated"; }else{ document.getElementById('btn_check').innerHTML = "Check"; } } There you have it we successfully created a Simple Password Validation using Javascript. I hope that this simple tutorial help you to what you are looking for. For more updates and tutorials just kindly visit this site. Enjoy Coding!

Note: Due to the size or complexity of this submission, the author has submitted it as a .zip file to shorten your download time. After downloading it, you will need a program like Winzip to decompress it.

Virus note: All files are scanned once-a-day by SourceCodester.com for viruses, but new viruses come out every day, so no prevention program can catch 100% of them.

FOR YOUR OWN SAFETY, PLEASE:

1. Re-scan downloaded files using your personal virus checker before using it.
2. NEVER, EVER run compiled files (.exe's, .ocx's, .dll's etc.)--only run source code.

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