The original Cascading Style Sheets specification, as well as its much more recent CSS3 revision, are technologies used to enhance and format HTML Web pages. CSS was initially designed to handle the presentation layer of a Web page in a more efficient manner than formatting with HTML, which was never intended to handle the complex construction of the contemporary Web. Because CSS2 is a a universally adopted extension of CSS1, the term CSS without a number implies the inclusion of CSS2. The CSS3 spec is still under development as of July 2014, so Web developers need to consider feature support varies between browsers. CSS3 Is Backwards Compatible With CSS CSS3 is an update to CSS2 that maintains compatibility with all of CSS's features -- CSS3 doesn't deprecate any of the CSS code. The CSS3 code is designed to make Web pages look better and load faster as well as reduce development time to build pages in a user's browser. CSS3 makes Web design less reliant on image fi...

A push notification is a message that is “pushed” from backend server or application to user interface, e.g. (But not limited to) mobile applications and desktop applications. Service workers are a great way to run some script in the background and not putting the load on your main business logic running on front-end.  Your app does not have to be open in the browser, to get the notification. It mean that’s the real purpose of push notifications, notify the user about the content of your application.                          A pplication server tells Google Cloud Messaging (GCM) server that there is something new content and GCM server then awakens the service worker which generates the push notification. Register Service Worker if ('serviceWorker' in navigator && 'PushManager' in window) { navigator.serviceWorker.register('software-worker.js') .then(function(reg) { registration = reg; ...

Microsoft is rethinking its strategy when it comes to startup acceleration in Paris. The company is going to focus on artificial intelligence. This will lead to a new program for AI startups at  Station F . Microsoft has had a startup accelerator in the Sentier neighborhood for a few years now. When Station F opens at the  end of June , the company is going to focus exclusively on artificial intelligence with a partnership with  INRIA  and move everything to the startup campus. “We think that we’re first going to select 5 or 6 startups that can foster an ecosystem around INRIA and themselves,” Microsoft France Developer Experience leader Christophe Shaw told me. “The idea is that we’re eventually going to have a hundred startups in this club.” And the first startup joining this program is  Recast.ai . This French startup has been building a service that helps you build, launch and manage chatbots. The company also takes care of hosting those bots. A few ...

Anybody who has run the MySQL MTR test suite must have seen a statement like “x tests were skipped, y by the test itself. ” at the end of test runs. Why are some tests being skipped? Are the skipped tests affecting test coverage? If you are interested to know, read on … Background The MTR test suite is run regularly on multiple platforms and with various values for MySQL system variables. Not all MTR tests can run on all environments making it necessary to skip tests in some cases. MTR supports this with the command called  skip . It is used to check if the prerequisites needed to run a test are satisfied . If not satisfied, the test is skipped with an informative message defined by the test author. For example, tests that can run only on windows have to be skipped on other platforms. However, wrong usage of ‘skip’ can lead to a situation where some tests are never run in the regression test environment. This leads to reduced test coverage and hence bug escape. An example i...

10 minutes of coding 50 minutes of debugging why the Node packages broke

Getting Started Make sure that you have Node.js and NPM installed on your machine, if not,  visit the Node.js website  to install the latest version. Make sure you have  Yarn  installed globally: npm install yarn - g Let's start by creating a folder for our app.  In your favorite terminal run the following commands: mkdir simple - blog cd simple - blog Now let's add a package.json file to import all of our dependencies for our app: vim package.json Add the following to our package.json file: { "dependencies" : { "cosmicjs" : "^2.39.0" , "express" : "^4.15.2" , "hogan-express" : "^0.5.2" , "nodemon" : "^1.11.0" } , "scripts" : { "start" : "node app.js" , "development" : "nodemon app.js" } }  It's a pretty light dependency list for a pretty light app.  So what we will ...