Constrain an HTML Input Box to Uppercase

The easiest way to constrain an HTML input box to uppercase is to use the STYLE attribute inside the INPUT tag.

Suppose you have the following code:

<input type="text" name="big" style="text-transform:uppercase;">

When you type usd, it will appear on screen as USD, but it will be submitted to the server as usd, since STYLE only affects the appearance, not the original data.Here’s the workaround:

This raises another question: why not remove STYLE and just use the JavaScript? The answer is: You can, but users will see the characters “flash” from lower to upper case as they type, which is irritating.”

Share the Post:
Share on facebook
Share on twitter
Share on linkedin


The Latest

homes in the real estate industry

Exploring the Latest Tech Trends Impacting the Real Estate Industry

The real estate industry is changing thanks to the newest technological advancements. These new developments — from blockchain and AI to virtual reality and 3D printing — are poised to change how we buy and sell homes. Real estate brokers, buyers, sellers, wholesale real estate professionals, fix and flippers, and beyond may

man on floor with data

DevX Quick Guide to Data Ingestion

One of the biggest trends of the 21st century is the massive surge in internet usage. With major innovations such as smart technology, social media, and online shopping sites, the internet has become an essential part of everyday life for a large portion of the population. Due to this internet

payment via phone

7 Ways Technology Has Changed Traditional Payments

In today’s digital world, technology has changed how we make payments. From contactless cards to mobile wallets, it’s now easier to pay for goods and services without carrying cash or using a checkbook. This article will look at seven of the most significant ways technology has transformed traditional payment methods.