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Engineering News

Steps to Buy Ethereum Cryptocurrency in India

Ethereum is a project that combines a digital currency, the Ether, like Bitcoin, but takes advantage of the possibilities offered by blockchain, an unalterable record that since the birth of Ethereum has been aimed at the creation of smart contracts. Smart contracts, as a rule, include a financial transaction, act transparently for both parties and their operation is very similar to the programming codes If they do that. All this information is reflected in the blockchain, an unalterable record where…

Improving Android video on News Feed with Litho | Engineering Blog | Facebook Code

As video consumption on mobile devices grows rapidly, Facebook mobile engineers are faced with new challenges for rendering content efficiently. Videos demand more resources than simpler UI elements like text and photos. They use decoders that keep the CPU busy; they allocate large amounts of memory to set up; and they use more network bandwidth to download video data from the servers. Playing videos inside a scrollable container like News Feed is especially challenging – pressure on the device’s resources…

Writing complex macros in Rust: Reverse Polish Notation

(This is a crosspost of a tutorial originally published on my personal blog) Among other interesting features, Rust has a powerful macro system. Unfortunately, even after reading The Book and various tutorials, when it came to trying to implement a macro which involved processing complex lists of different elements, I still struggled to understand how it should be done, and it took some time till I got to that “ding” moment and started misusing macros for everything 🙂 (ok, not…

Researchers develop wireless light switch for targeted cancer therapy

Researchers from the National University of Singapore developed a novel technology to wirelessly deliver light into deep regions of the body to activate light-sensitive drugs. This potentially enables photodynamic therapy to be used to treat a wider range of cancers, such as brain and liver cancer. Left to right: Assistant Professor John Ho and Professor Zhang Yong. Credit: National University of Singapore A team of scientists from the National University of Singapore (NUS) has developed a way to wirelessly deliver…

Getting Started Exploring SDKs with REPL-Driven Development in Node.js,

The faster it is to get up and running with an API the better. SDKs help speed up that on-boarding process by providing an already-written, pre-made API client that just works in the language you’re already using. The Square Connect API, for example, has SDKs in half a dozen languages. So how do we explore an SDK? One way is to take examples from the documentation, save them to file, then run them. That process works, but you can decrease…

Contextual Calendar Reminder: Key to Successful Hosting

By Tao Cui and Yuting Gu Motivation Airbnb’s mission is to create a world where anyone can belong anywhere. So when hosts forget to update their calendars and are booked by guests on dates that don’t work, the host has to cancel the reservation. This definitely does not make the guests feel like they belong. Inaccurate calendars are also detrimental to the business. Being cancelled on is a frustrating experience that makes guests think twice about using Airbnb for a…

Let’s build a Markdown parser!

Every month, Square Engineers give lightning talks internally. We’re excited to share some of our favorites! Enjoy this lightning talk where Winnie Wu explored how her team built a markdown parser in their Ruby on Rails app. https://medium.com/media/d1b43073e9bc6db56812051fc863c30b/href Let’s build a Markdown parser! was originally published in Square Corner Blog on Medium, where people are continuing the conversation by highlighting and responding to this story. Source link…

Free Square plugin now available for WooCommerce – Square Corner Blog – Medium

WooCommerce integrated Square’s Transactions, Catalog, and Inventory APIs in one easy-to-install extension to make selling online and in-person simpler. For developers who manage WordPress or WooCommerce sites for clients: we wanted to make sure you saw that the Square extension for WooCommerce is now available to install for free. This has been a top request from sellers and developers alike, and we’re excited it’s now a reality. The extension, which was previously available for $79/year, has been instrumental for businesses…

A ski jacket that actively gets rid of sweat

During winter sports, the body produces a lot of moisture. Nevertheless, new functional clothing ensures a pleasantly warm and dry microclimate. Credit: Marcin Wiklik/iStock To keep the body warm and dry during winter sports, high-performance clothing is a must. The demands on these textiles are high, as a person sweats up to one liter per hour on his upper body alone when skiing. A new technology, co-developed by a team of Empa scientists, helps athletes sweating by actively transporting moisture…