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Nalezeno "JavaScript": 187

JavaScript Numeric Separators


Writing good code is important — writing code that’s easily human readable is a next level skill. It’s not often that APIs are introduced whose seemingly only useful function is making code more readable, but let me introduce you to JavaScript numeric separators: an API that lets...

Trigonometry in CSS and JavaScript: Introduction to Trigonometry


In this series of articles we’ll get an overview of trigonometry, understand how it can be useful, and delve into some creative applications in CSS and JavaScript. The post Trigonometry in CSS and JavaScript: Introduction to Trigonometry appeared first on Codrops

proxy-www


I like a good trick. What if… a URL was… a promise… that fetched said URL? www.codepen.io.then((response) ={ console.log(response); }); That’s what @justjavac did with JavaScript Proxys. A clever trick, that. Don’t @ me about the practicality. Trick… The post...

Astro


You can’t even look at code or documentation for Astro (publicly) yet — it’s an in-progress idea — but you can watch a video of Fred showing it off to Feross. I gotta admit: it looks awesome. I’m bullish … The post Astro appeared first on CSS-Tricks. You can support...

You Can Label a JavaScript `if` Statement


Labels are a feature that have existed since the creation of JavaScript. They aren’t new! I don’t think all that many people know about them and I’d even argue they are a bit confusing. But, as we’ll see, labels can … The post You Can Label a JavaScript `if` Statement appeared first...

Regular Expression Match Groups


Regular expressions are incredibly powerful but can be difficult to maintain. They’re a skill you learn on the job and, when the suits walk by, make you look incredibly smart if you have a few up on your screen. How can we solve the maintainability problem? With a match groups, as Addy Osmani...

Object.entries


Navigating and managing data structures is a really important skill for every level of engineer to have and improve upon. Over the years, the JavaScript language has continued to provide more methods for managing data structures, from Object.keys to Object.values and so on. One of my favorites...

Five Top Quality APIs


It’s easy to think about creating beautiful UIs for presenting data when you don’t consider the effort that goes into gathering and serving the data itself. Here’s the thing — thanks to apilayer, you can focus on your UIs and not the pain of API creation. No need to worry...

Intl.NumberFormat


Formatting numbers on the client side is an important task, especially when you consider how much raw API usage is in play these days. What’s also important is ensuring those numbers are meaningful to users, no matter where they are in the world, especially if you’re an eCommerce...

Detect CSS Overflow Elements


Every once in a while you encounter a CSS annoyance that takes some cleverness to discover. One such case rears its ugly head in unwanted and unexpected scrollbars. When I see unwanted scrollbars, I usually open developer tools, click the element inspector, and hover around until I find...

Use Logpoints!


There’s sometimes a tribal attitude about how web developers should be debugging their code and solving problems. There’s the console.log loyalists, then there’s the debugger/breakpoint maximalists. I worked on the Firefox DevTools debugger for years and I can tell you...

JavaScript Wake Lock API


An enjoyable web apps rely on engineers implementing the APIs that cover all of the small things. Those small things sometimes improve performance, usability, accessibility, and the app’s relationship with its host system. The Wake Lock API is the latter — an API that allows developers...

Life with ESM


ESM, meaning ES Modules, meaning JavaScript Modules. Like, import and friends. Browsers support it these days. There is plenty of nuance, but as long as you’ve dropped IE, the door is fairly open. Before ESM, the situation for JavaScript … The post Life with ESM appeared first...

State of JavaScript 2020


We rounded up a bunch of published 2020 annual reports right before the year ended and compiled them into a big ol’ list. The end of the list called out a couple of in-progress surveys, one of which was … The post State of JavaScript 2020 appeared first on CSS-Tricks. You can support...

navigator.clipboard API


Interacting with a user’s host clipboard is something web developers have wanted for both good and evil purposes. On the good side, it’s nice to allow users to easily copy text like wallet addresses or branch names; for evil, copying malicious text that the user may mistakenly paste...

Return a Default Value with Promises Using catch


Last week I tweeted all of you looking for your best JavaScript Array and Promise tricks, and as always, it didn’t disappoint — I learned quite a bit! Today’s JavaScript Promise trick is brought to you by Claudio Semeraro: how to use catch to set a default value instead of...

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