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Nalezeno "function": 217

Contextual Utility Classes for Color with Custom Properties


In CSS, we have the ability to access currentColor which is tremendously useful. Sadly, we do not have access to anything like currentBackgroundColor, and the color-mod() function is still a ways away. With that said, I am sure I am not alone when I say I'd like to style some links based on...

All the New ES2019 Tips and Tricks


The ECMAScript standard has been updated yet again with the addition of new features in ES2019. Now officially available in node, Chrome, Firefox, and Safari you can also use Babel to compile these features to a different version of JavaScript if you need to support an older browser. Let’s look...

Using Netlify Forms and Netlify Functions to Build an Email Sign-Up Widget


Building and maintaining your own website is a great idea. Not only do you own your platform, but you get to experiment with web technologies along the way. Recently, I dug into a concept called serverless functions, starting with my own website. I’d like to share the results and what I learned...

Run useEffect Only Once


React has a built-in hook called useEffect. Hooks are used in function components. The Class component comparison to useEffect are the methods componentDidMount, componentDidUpdate, and componentWillUnmount. useEffect will run when the component renders, which might be more times than you think....

Five of the Most Important Use Cases for Cryptocurrency


Crypto assets have come a long way since Bitcoin. What started out as a P2P payment system has spawned an array of use cases that extend far beyond the original designation of cryptocurrency. While the primary function of crypto assets such as ETH and BTC is a matter of some debate, what’s...

What I Like About Vue


Dave Rupert digs into some of his favorite Vue features and one particular issue that he has with React: I’ve come to realize one thing I don’t particularly like about React is jumping into a file, reading the top for the state, jumping to the bottom to find the render function, then following...

Hey, let’s create a functional calendar app with the JAMstack


Hey, let's create a functional calendar app with the JAMstack I’ve always wondered how dynamic scheduling worked so I decided to do extensive research, learn new things, and write about the technical part of the journey. It’s only fair to warn you: everything I cover here is three weeks of research...

Getting to Know the useReducer React Hook


useReducer is one of a handful of React hooks that shipped in React 16.7.0. It accepts a reducer function with the application initial state, returns the current application state, then dispatches a function. Here is an example of how it is used; const [state, dispatch] = useReducer(reducer...

Getting to Know the useReducer React Hook


useReducer is one of a handful of React hooks that shipped in React 16.7.0. It accepts a reducer function with the application initial state, returns the current application state, then dispatches a function. Here is an example of how it is used; const [state, dispatch] = useReducer(reducer...

Collective #523


Function-based Component API in Vue * Brutalist HTML quine * The Anatomy of a Jellyfish * freemium.cc Collective #523 was written by Pedro Botelho and published on Codrops

Create a Custom useFetch() React Hook


A custom hook is a JavaScript function with a unique naming convention that requires - the function name to start with use and the function may call other Hooks

JavaScript Detect Async Function


JavaScript async/await has changed the landscape of how we code. We’re no longer stuck in callback or then hell, and our code can feel more “top down” again. Async functions require the following syntax: async function myFunction() { } To use await with a function, the function...

That Time I Tried Browsing the Web Without CSS


CSS is what gives every website its design. Websites sure aren’t very fun and friendly without it! I’ve read about somebody going a week without JavaScript and how the experience resulted in websites that were faster, though certain aspects of them would not function as expected. But CSS. Turning...

The Circle of a React Lifecycle


A React component goes through different phases as it lives in an application, though it might not be evident that anything is happening behind the scenes. Those phases are: mounting updating unmounting error handling There are methods in each of these phases that make it possible to perform...

Tabs: It’s Complicated™


I've said before one quick and powerful thing you can learn as a front-end developer just getting starting with JavaScript is changing classes. const button = document.querySelector(".my-button"); const element = document.querySelector(".content"); button.addEventListener("click", function()...

Faking env() to Use it Now


There is already an env() function in CSS, but it kinda came out of nowhere as an Apple thing for dealing with "The Notch" but it has made it's way to be a draft spec. The point will be for UAs or authors to declare variables that cannot be changed. Global const for CSS, sorta. That spec doesn't...

An Illustrated (and Musical) Guide to Map, Reduce, and Filter Array Methods


Map, reduce, and filter are three very useful array methods in JavaScript that give developers a ton of power in a short amount of space. Let’s jump right into how you can leverage (and remember how to use!) these super handy methods. Array.map() Array.map() updates each individual value in...

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