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[aktualita] Státní agentura API začala s příjmem žádostí o dotace na vysokorychlostní internet
9.5.2019
Agentura pro podnikání a inovace, státní příspěvková organizace podřízená Ministerstvu průmyslu a obchodu ČR, začala přijímat žídosti o dotace na budování sítí pro vysokorychlostní internet v rámci tzv. Výzvy II programu Vysokorychlostní internet. Výzvu vyhlásilo v únoru Ministerstvo průmyslu...
A Few Functional Uses for Intersection Observer to Know When an Element is in View
8.5.2019
You might not know this, but JavaScript has stealthily accumulated quite a number of observers in recent times, and Intersection Observer is a part of that arsenal. Observers are objects that spot something in real-time — like birdwatchers going to their favorite place to sit and wait for the birds...
Getting To Know The MutationObserver API
8.5.2019
MutationObserver watches the DOM, specifically the places you tell it to, like:
document.querySelector('#watch-this');
...and it can tell you (trigger a callback) when stuff happens — like when a child is added, removed, changed, or a number of other things.
I used it just the other day...
The Many Ways of Getting Data Into Charts
1.5.2019
Data is available everywhere nowadays, whether it’s in a plain text file, a REST API, an online Google sheet… you name it! It’s that variety of context that makes building graphs more than simply having a database in your local project — where there is data, there is a way.
That’s pretty much what...
Earth day, API’s and sunshine.
1.5.2019
Cassie Evans showcases some really nifty web design ideas and explores using the API provided by the company her team over at Clearleft recently hired to cover their building's roof with solar panels. Cassie outlines her journey designing a webpage that uses the API to populate some light data...
Happy 6th Birthday! DATA Alliance, Block Explorers and more
1.5.2019
Today we are celebrating our sixth anniversary at CoinMarketCap. To commemorate this momentous occasion, we are announcing several major initiatives that we’ve been working on for months: CoinMarketCap Data Accountability & Transparency Alliance CoinMarketCap Block Explorers CoinMarketCap Shop...
Collective #512
29.4.2019
Let's Make A Design System! * CSS Spatial Navigation Level 1 * MutationObserver API * 3D Projection
Collective #512 was written by Pedro Botelho and published on Codrops
PragueJS #4 – Build a fullstack GraphQL app with Prisma, Apollo and React
26.4.2019
Další z řady setkání PragueJS se blíží. 30. dubna si můžete přijít poslechnout tři zajímavé přednášky. První z nich bude od Pavla Kepky z Blueberry. Pavel nám vysvětlí proč by nás REST API…
The Circle of a React Lifecycle
23.4.2019
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...
Netlify Functions for Sending Emails
23.4.2019
Let's say you're rocking a JAMstack-style site (no server-side languages in use), but you want to do something rather dynamic like send an email. Not a problem! That's the whole point of JAMstack. It's not just static hosting. It's that plus doing anything else you wanna do through JavaScript...
Using the Web Speech API for Multilingual Translations
12.4.2019
Since the early days of science fiction, we have fantasized about machines that talk to us. Today it is commonplace. Even so, the technology for making websites talk is still pretty new.
We can make our pages on the web talk using the SpeechSynthesis part of the Web Speech API. This is still...
WDRL — Edition 263: Edged Chromium, API Linting with Spectral, AutoComplete Rules, and UI Patents.
12.4.2019
Hey,
“Ethics” and Ethics is more than a normal article to read. It’s a long essay about what the word ethics means, how its meaning changed in recent time, and the difficulty of diffusion of responsibility in companies. It makes it hard to address and fix problems in big organizations, which...
KV Storage
1.4.2019
localStorage is...
Good! It's an incredibly easy API to use.
localStorage.setItem('name', 'Chris'); let name = localStorage.getItem('name');
Bad! Philip Walton explains why:
localStorage is a synchronous API that blocks the main thread, and any time you access it you potentially prevent your...
CSS Houdini Could Change the Way We Write and Manage CSS
28.3.2019
CSS Houdini may be the most exciting development in CSS. Houdini is comprised of a number of separate APIs, each shipping to browsers separately, and some that have already shipped (here's the browser support). The Paint API is one of them. I’m very excited about it and recently started to think...
IFTTT přijde kvůli změnám API o některé schopnosti práce s Gmailem
22.3.2019
IFTTT je služba, ve které si uživatel může nastavit vzájemné akce a reakce různých internetových aplikací. Podstatu vyjadřuje její název, který lze vyložit jako „pokud se stane toto, udělej tamto“ („If This Then That“). Od 31. března však přijde o některé schopnosti práce s e-mailovou schránkou na
The Whole Spreadsheets as Databases Thing is Pretty Cool
18.3.2019
A spreadsheet has always been a strong (if fairly literal) analogy for a database. A database has tables, which is like a single spreadsheet. Imagine a spreadsheet for tracking RSVPs for a wedding. Across the top, column titles like First Name, Last Name, Address, and Attending?. Those titles...
7 things you should know when getting started with Serverless APIs
14.3.2019
I want you to take a second and think about Twitter, and think about it in terms of scale. Twitter has 326 million users. Collectively, we create ~6,000 tweets every second. Every minute, that’s 360,000 tweets created. That sums up to nearly 200 billion tweets a year. Now, what if the creators...
Get Started with Node: An Introduction to APIs, HTTP and ES6+ JavaScript
11.3.2019
Jamie Corkhill has written this wonderful post about Node and I think it’s perhaps one of the best technical articles I’ve ever read. Not only is it jam-packed with information for folks like me who aren't writing JavaScript everyday, it is also incredibly deliberate as Jamie slowly walks through...
ČÚZK spustil nové geolokační API. Vývojáři mohou hledat místa v Česku
8.3.2019
Fanoušci státních otevřených dat a GISů mohou stavět nové aplikace nad daty ĆÚZK, státní správa totiž spustila bezplatné API pro přístup k průběžně aktualizovaným registrům RÚIAN (Registr územní identifikace, adres a nemovitostí).
Jedná se o:
Vyhledávací (geokódovací) službu
Prohlížecí
Writing Tests for React Applications Using Jest and Enzyme
1.3.2019
While it is important to have a well-tested API, solid test coverage is a must for any React application. Tests increase confidence in the code and helps prevent shipping bugs to users.
That’s why we’re going to focus on testing in this post, specifically for React applications. By the end, you’ll...