The HTML pattern attribute - regular expressions on input fields
Make money for being or staying online/internet.

You will get a $5 starting gift when you join using this link:: GET THE OFFER NOW!!

In this post we take a look at the new "pattern" attribute in HTML which allows you to add custom validation to your input fields through the form of a regular expression pattern.

So for beginners to set the record straight it is possible to validate form input fields using html.The most common attribute that you may be familiar with is the required attribute.

So what does required attribute do?

The required attribute makes the input field compulsory,so the user can't submit form data without filling the input field required.

Common Attribute Usage



<input type="text" placeholder="username" required>


HTML "pattern" attribute

In our example below we are validating the username input field.Here we check if the Username is between 5 to 10 in length.



<input type="text" pattern="[A-Za-z\d]{5,10}" title="Username should be between 5 to 10 in length and contain atleast a number" required>

<input type="submit">


Example Explained

Let's look at each part in this pattern attribute pattern="[A-Za-z\d]{5,10}"

A-Za-z - This indicates that both Uppercase and Lowercase letters are allowed.

\d - This indicates that the username should atleast contain a nubmber.

{5,10} - This specifies the minimum - maximum length of the username.It is user defined so you can set your own limit.

Save up to 80% with this Domain & Shared Hosting package deal! 80% OFF - GET OFFER NOW

Related Post(s)

» How to force the browser to cache a page?

» Learning Basic HTML

» The HTML pattern attribute - regular expressions on input fields

» How to Create a Nav Bar | HTML & CSS Tutorial | Source Code

» HTML explained in a few lines

collections_bookmark Category :: Html
date_range Published :: 4 years ago At: 03:23 AM
event_note Detailed Date :: Jan 10th, 2019
person Writer :: Code
8 months ago

How to force the browser to cache a page?

There are several ways to force a web browser to cache an HTML page:

8 months ago

How can i cache pages using php?

You can use the output buffering functions in PHP to cache pages. Output buffering allows you to store the output of a PHP script in a buffer, which you can then manipulate before sending it to the client.

8 months ago

PHP explained in a few lines

PHP is a popular programming language that is widely used for web development. It stands for "PHP: Hypertext Preprocessor" and is a server-side scripting language. This means that it is executed on the server, rather than in the user's web browser.

8 months ago

HTML explained in a few lines

HTML, or Hypertext Markup Language, is the standard markup language for creating web pages and web applications. It is used to structure and organize content on the web, and to create the basic structure and layout of a webpage.

8 months ago

CSS explained in a few lines

CSS, or Cascading Style Sheets, is a stylesheet language used for describing the look and formatting of a document written in HTML. CSS is used to control the presentation of multiple web pages at once, making it a crucial tool for web developers and designers.

2 years ago

A JavaScript library for formatting and manipulating numbers - Numeral.js

Check out this lightweight JavaScript library used for formatting and manipulating numbers.

2 years ago

All Countries Drop Down List | HTML Select Country Name

This simple country dropdown list is freely available for you to copy and use in your project forms.

2 years ago

HTML Entities Code Alphabet Discovery Using JavaScript

In this post I will show how writing just a few lines in JavaScript will allow you to render, browse and discover the alphabetical letters using a set of HTML entity codes.