Form Validation Using JavaScript's Constraint Validation API
Form validation is one of the primary reasons to use client-side JavaScript. It can prevent user entry errors before your app attempts to submit data to the server. But… client-side validation is not a substitute for server-side validation! Always check incoming user data on the server. Not every request will come from a browser nor will every browser run validation code. Client-side validation is
Hyperapp – Is It the Lightweight 'React Killer'?
For a while now, JavaScript and its ecosystem have been thriving. From different tooling categories, UI frameworks have enjoyed immense popularity. New libraries and frameworks seem to pop up almost every day, while Vue, React, and Angular persistently lead the way. From these new options, there are some that deserve your attention. I’m thinking Svelte, Solid, and Hyperapp - an ultra-lightweight U
The definitive guide to profiling React applications
Knowing how to profile a React application to improve real-world performance is a good tool in any front-end developer’s toolkit. The Profiler API allows us to do just that with insights on why and how long our components are rendering for. We can use the profiling data to find unnecessary and expensive renders that may be impacting performance negatively. Thankfully, it’s not that complicated. Le
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