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How to Create a QR Code
15.10.2019
QR codes aren’t everyone’s cup of tea but I quite like them. If I see something I want to remember or check out later, especially when on the road, it’s super easy to take a quick picture — it’s much easier than trying to remember a URL and much faster than typing...
How to Not Minify Source with webpack
10.9.2019
The webpack JavaScript utility has taken over the modern JavaScript landscape, so much so that it’s hard to be a JavaScript developer and not use it. JavaScript build utilities are the point where they do best practices implicitly, like minify code, caching, and more. I was recently debugging...
Stop Installing Packages Globally
9.9.2019
These days, most front-end projects are going to involve NPM packages of some kind. Occasionally, when browsing documentation for these packages, I’ll see a recommendation to install a package like this. yarn global add <package> Or like this. npm install --global <package> In both...
Blockchain Scalability: Current Challenges and Potential Solutions
31.8.2019
While blockchain scalability is one of the biggest hurdles to mass adoption, the existing consensus mechanisms come with their own set of tradeoffs. To decentralize nonfinancial blockchains as well, we’re going to need novel approaches to secure their decentralized networks
US Regulator Plans to Outsource Running Cryptocurrency Nodes
2.8.2019
A recently published document reveals that the U.S. Securities and Exchange Commission (SEC) has plans to hire contractors to run specific cryptocurrency full nodes for the government agency. According to the SEC documentation, the regulator wants third-party contractors to run nodes for Bitcoin...
Meet the Developer Who Added Schnorr Signatures to Bcash
14.6.2019
This week news.Bitcoin.com spoke with Jonathan Gonzalez, the blockchain developer who is currently maintaining the Bcash project, a Bitcoin Cash full node written in node.js. Gonzalez explained how he got into Bitcoin Cash development and how he managed to get the Bcash node fully compatible with...
How to Detect Text in Images
11.6.2019
Images are a great way to communicate without text but oftentimes images are used/abused to spread text within social media and advertisements. Text in images also presents an accessibility issue. The truth is that it’s important, for any number of reasons, to be able to detect text in image...
Používáme knihovnu Readability na serveru
4.4.2019
Možná znáte Readability z reader-view v prohlížeči. Odstraní ze stránky přebytečný balast a zůstane jen dobře čitelný text. Stejný projekt lze s úspěchem použít i na serveru. Pojďme si ukázat, proč i servery potřebují dobře čitelné texty
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...
Web<element> – první vydání fullstack konference
20.2.2019
Jak to vlastně je s těmi full-stack vývojáři? Existují? Nebo jsou to jen urban legends? Ale víte co? Je to jedno. Ale co taková konfrence, která bude mít široký přesah? Tak na to odpověd máme v podobě prvního webelementu
Automate Your Workflow with Node
18.7.2018
You know those tedious tasks you have to do at work: Updating configuration files, copying and pasting files, updating Jira tickets.
Time adds up after a while. This was very much the case when I worked for an online games company back in 2016. The job could be very rewarding at times when I had...
Convert HTML to Markdown
21.6.2018
One of my biggest mistakes with this blog was not finding a WordPress plugin that would allow me to write my posts with markdown; to this day I still need to write posts in “Visual” mode and then manually convert the post to HTML for “Text” mode. One of these days I want...
Testovací trio Mocha, Chai a Sinon
14.2.2018
Představíme vám testovací framework Mocha, knihovny Chai a Sinon. Ukážeme, k čemu slouží, a na co si dát pozor při jejich používání. Dále vysvětlíme, jak se pracuje s knihovnou Sinon, která slouží pro mockování/stubování a vytváření špiónů