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Tag Archives: JavaScript

Using Rhino with Java 8

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Java brings Nashorn as new JavaScript implementation for JSR 223 (javax.scripting). While this is certainly great news (Nashorn is way faster than Rhino by directly generating Java code), it comes with some challenges: Nashorn is not 100% compatible with Rhino. Rhino had some extensions and more or less other interpretations on how to combine the Java world with JavaScript. Therefore ...

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Pushing the Limits – Howto use AeroGear Unified Push for Java EE and Node.js

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At the end of 2014 the AeroGear team announced the availability of the Red Hat JBoss Unified Push Server on xPaaS. Let’s take a closer look! Overview The Unified Push Server allows developers to send native push messages to Apple’s Push Notification Service (APNS) and Google’s Cloud Messaging (GCM). It features a built-in administration console that makes it easy for ...

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Reactive HTML presentations using Reveal.js, Gist, and OpenShift

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Reveal.js is an HTML-base presentation framework. You just need a browser with CSS 3D transforms. That means Chrome, Firefox, Safari, Opera, and IE 10-11 are supported. It also provides a nice fallback for other legacy browsers. Check out a live demo yourself. This Tech Tip will show how to create Reveal.js-based presentations easily using Gist and OpenShift. Why Gist? This allows to separate presentation ...

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Server side logging from browser side JavaScript code

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Application logging is something we all do in our applications that get deployed on an application server, right? Using frameworks like Log4J or Logback seems like a no-brainer to most Java developers. But what about the code we’ve written that is running in those pesky browsers? I guess that, apart from the occasional console.log() statement used during debugging, we don’t ...

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AngularJS: Different ways of using Array Filters

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AngularJS provides filter feature which can be used to format input value or to filter an Array with the given matching input criteria. For example you can use ‘date’ filter to format a Date value into human readable Date representation like MM-DD-YYYY as {{dob | date}}. On the other hand there are Array filtering feature which is very useful while ...

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AngularJS: Introducing modules, controllers, services

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In my previous post AngularJS Tutorial: Getting Started with AngularJS we have seen how to setup an application using SpringBoot + AngularJS + WebJars. But it’s a kind of quick start tutorial where I haven’t explained much about AngularJS modules, controllers and services. Also it is a single screen (only one route) application. In this part-2 tutorial, we will take ...

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AngularJS Tutorial: Getting Started with AngularJS

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AngularJS is a popular JavaScript framework for building Single Page Applications (SPAs). AngularJS provides the following features which makes developing web apps easy:             Two way data binding Dependency Injection Custom HTML Directives Easy integration with REST webservices using $http, $resource, Restangular etc Support for Testing and many more… Though there are lot more features ...

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Functional Reactive Programming and JavaScript

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Functional reactive programming (FRP) is an emerging programming paradigm that has recently gained popularity in the web world. That popularity isn’t just tied to fact that the video streaming giant Netflix blogged about how it applies FRP to optimize its API, but because it actually provides an elegant way to reduce the complexity of dealing with time-varying events and asynchronous ...

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JavaScript Promises Are Cool

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“And when I promise something, I never ever break that promise. Never.” ― Rapunzel Many languages have libraries of interesting schemes called promises, deferreds, or futures. Those help to tame the wild asynchronous into something more like the mundane sequential. JavaScript promises can promote separation of concerns in lieu of tightly coupled interfaces. This article is about JavaScript promises of ...

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