Handling jQuery form validation in a smart contract migration interface
I'm prototyping a solution and During development of a user interface for a blockchain smart contract migration tool, I've implemented jQuery for form validation of user inputs... The goal is to ensure that users provide valid Ethereum addresses before submitting the form. I initially set up a basic validation routine: ```javascript $(document).ready(function() { $('#migrationForm').submit(function(event) { var address = $('#ethAddress').val(); if (!isValidEthereumAddress(address)) { event.preventDefault(); alert('Invalid Ethereum address.'); } }); }); function isValidEthereumAddress(address) { return /^0x[a-fA-F0-9]{40}$/.test(address); } ``` This snippet works fine, but I want to expand it to include real-time validation feedback as the user types in the address field. I’ve tried binding the `input` event to the input field, but it doesn’t seem to trigger in some cases, particularly on mobile devices. Here’s what I’ve attempted: ```javascript $('#ethAddress').on('input', function() { var address = $(this).val(); if (!isValidEthereumAddress(address)) { $(this).css('border-color', 'red'); } else { $(this).css('border-color', 'green'); } }); ``` This approach works on desktop but fails to provide visual feedback on mobile browsers. I suspect it might be due to event delegation issues or the way jQuery handles input events across platforms. Has anyone dealt with similar issues when integrating jQuery into a mobile-responsive design, especially for form validations? Any insights on making it more reliable across different devices would be greatly appreciated. I'm using jQuery 3.6.0 and testing on both iOS and Android devices. Additionally, it would be helpful to hear thoughts on best practices for error handling and user feedback in this context, particularly as we scale this application to support multiple smart contracts in the future. Hoping someone can shed some light on this.