While CSS isn’t as widely used as JavaScript, it’s still in the top 10 coding languages, according to Redmonk. Since CSS is quite robust, reasonably easy to learn, and universal across different browsers, it’s popular among website developers. As it is with every coding language, there are several shortcuts or hacks with CSS that allow you to write cleaner code, improve design elements, and save valuable time. Furthermore, you can directly insert these snippets to your site using a code editor. It is also important to know that you don’t have to be a senior web developer to use CSS. Data from W3Techs show that CSS is used by 96 percent of all websites, and being able to use CSS to enhance the layout and appearance of a website is integral to the functioning of major open source CMSs like WordPress. In fact, most of the biggest website builder tools (generally known for promoting a “What You See Is What You Get” or WYSIWYG approach) now allow users to insert custom CSS code. If you’re new to CSS, freeCodeCamp has an excellent tutorial video on Youtube where you can learn the basics. If you already know the fundamental aspects, then let’s get started with these ten CSS hacks. 1. How to position content in the center with CSS Placing content in the middle of the screen might be tricky. However, you can use position: absolute to override the dynamic placement and always position the content in the center. It also works with every resolution across devices. However, always double-check if everything is positioned as you want it and the...
Greetings! Glad to see you back. This is the fourth and final chapter in our React Native and Redux cryptocurrency app series. So far we have: Set-up our project Wired up Redux Fetched data with Redux The only thing for us to do is create our views with React. The most fun part! Where we left off Quick change: set the CryptoReducer.js intialState data prop to an empty array instead of null! It won’t work if you don’t do this — apologies! https://medium.com/media/16bd7b521486654913c023e861688a0d/href Alrighty, here’s what’s left to do: Create a stateless component called CoinCard.js and create the list item. Remember the sketch called “thinking in React” from the old times? “Thinking in React” Source This perfectly explains how our app works. It goes like this: The yellow border is our App.js — app container Blue border is our Header.js component Green border is our CryptoContainer.js — holds our list items Red and neon blue is our CoinCard.js — lists items. Makes sense, right? All we need to do is implement the red and neon blue borders. Start by creating the stateless component. Looks good! Import View, Text, StyleSheet from “react-native” — we need these to create our view. Next let’s declare our props. Let’s name these the same as the data in our API. Next up, let’s add the coin icons. Unfortunately, the API does not include icons, so we have to compensate. Not to worry — I’ve got your back! Make a file in Utils called CoinIcons.js and add these links. I uploaded the icons to and host them as static assets. If you want to help me — feel free to add the rest and make a PR! Here’s the icon set. https://medium.com/media/85f3cf9bfadd9144241eef24be98ccbf/href Did you notice something new other than the CoinIcons folder? Yep, we imported the Image tag from...
by Michael Cheary Looking for a new skill? Cyber security could be for you… With businesses increasingly concerned about the safety and security of their information, demand for people working in the industry is on the rise. In fact, cyber security jobs advertised on reed.co.uk are up 99% year-on-year – meaning there’s never been a better time get started. We spoke to the experts at e-Careers, one of the UK’s biggest providers of cyber security qualifications, to find out more about the current skills shortage – and how you can help fill it. What is cyber security? Cyber security is the name given to the technologies and processes set out to protect online data – primarily from attacks and unauthorised access. It’s a billion pound industry, and one that continues to grow as threats from the likes of malware, ransomware, phishing, DDoS attacks and hacking steadily increase. Why is cyber security important? With almost all of our personal data now stored online, cyber security attacks have the potential to completely ruin businesses – not to mention people’s lives – in the process. And with a number of recent high-profile attacks, such as those on the NHS, Yahoo and LinkedIn, companies are becoming increasingly concerned with any potential leaks that could occur. This means companies large and small are turning to cyber security professionals to help them keep their sites and their customers’ details safe. Why is there a cyber security skills gap? Because of how fast the numbers of cyber security opportunities out there are rising, the UK workforce is struggling to meet demand. According to a 2020...
Credit: CC0 Public Domain A huge volume of digital data has been harvested, stored and shared in the last few years from sources such as social media, geolocation systems and aerial images from drones and satellites, giving researchers many new ways to study information and decrypt our world. In Switzerland, the Federal Statistical Office (FSO) has taken an interest in the big data revolution and the possibilities it offers to generate predictive statistics for the benefit of society. Conventional methods such as censuses and surveys remain the benchmark for generating socio-economic indicators at the municipal, cantonal and national levels. But these methods can now be supplemented with secondary, mostly pre-existing data, from sources such as cell-phone subscriptions and credit cards. According to the FSO’s 2017 Data Innovation Strategy, “The goal of data innovation is to enhance the quality, scope and cost-efficiency of statistical products and to reduce the response burden on households and businesses.” Anonymized data Against this backdrop, a team of scientists at EPFL’s Laboratory on Human-Environment Relations in Urban Systems (HERUS) conducted a ground-breaking study on novel uses for the data held by insurance companies. The lab’s leading partner company, La Mobilière, provided anonymized data from hundreds of thousands of policyholders. These data included factors such as age, residential postal code, car- and homeownership, and employment status. “We wanted to see if we could use these data to predict specific socio-economic indicators—ones that could give us a better picture of the quality of Switzerland’s urban areas. One big advantage of the data held by insurers—provided they’re willing to share it—is that they are cheap to use, since...
How to send push notifications to a browser in ASP.NET Core Written by Kristoffer Strube, November 03, 2020 Progressive Web Apps (PWAs) enables a website to make make a lot of interactions that are app-like. Among these are Push Notifications. This is a functionality that enables you to make native notifications for many different devices and to invoke these notifications even when the browser is not active. A lot of websites like the Twitter web app use this functionality with its original intent, but there are of cause also sites who use it maliciously. In this article, we will show how you can subscribe to Push Notifications using ASP.NET Core and how you can send Push Notifications from .NET as well. Setting up a minimal PWA Before we can get started we need to set up a minimal Service Worker and Manifest to meet the minimum requirements for a PWA (Progressive Web App) since this we need a PWA for using the Notification API. We first create the manifest by making a JSON file called manifest.json which we will place in the wwwroot folder. Here we define the name for the app, the name that will be displayed in the app, if installed on a device, icons for the app in a variety of sizes, the front page URL of the site if the website can be installed as a standalone app, and at the end theme colors. We add a reference to the manifest in the head of our layout file which is used in all our views <link rel="manifest" href="/manifest.json">. We then need to add a Service...
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