Adventures in Aurelia: Creating a Custom PDF Viewer — SitePoint
This article was peer reviewed by Vildan Softic. Thanks to all of SitePoint’s peer reviewers for making SitePoint content the best it can be! Handling PDF files within a web application has always been painful to deal with. If you’re lucky, your users only need to download the file. Sometimes, though, your users need more. In the past, I’ve been lucky, but this time, our users needed our applicati
Quick Tip: DRY Up Your Model Validations Tests — SitePoint
June 20, 2016Quick Tip: DRY Up Your Model Validations Tests I was working on an application and needed to test the models, which is a pretty normal practice. I had to repeat validation tests for each field and each model resulting in lots of duplicated test code. So, I’m going to share my solution to this problem, which will help us avoid repeating similar validation tests for each model. I’m usin
Document Your JSON API Schema with PRMD — SitePoint
August 24, 2015Document Your JSON API Schema with PRMD On a recent project, my team agreed that we needed some way to validate and document the JSON coming in and out of our API. We had already settled on using JSON Schema as the means to describe the API, so determining how to validate (and document) JSON Schema was next on the to-do list. I did tons of research into how to best accomplish such n
Rails File Uploading You Can Believe in with Shrine — SitePoint
April 11, 2016Rails File Uploading You Can Believe in with Shrine In my previous article we learned how we to enable file upload in Rails using Refile. Today we will look at another file uploading gem – Shrine. Shrine is a another toolkit for file uploads in Ruby applications. In its introductory blog post, the author of Shrine, Janko Marohnić, indicates that Shrine is heavily influenced by both R
When to Use a Function Expression vs. Function Declaration — SitePoint
There are two ways to create functions in JavaScript: function expressions and function declarations. In this article, we will discuss when to use function expressions vs. function declarations, and explain the differences between them. Function declarations have been used for a long time, but function expressions have been gradually taking over. Many developers aren’t sure when to use one or the
Understanding JavaScript Modules: Bundling & Transpiling — SitePoint
This article was peer reviewed by Dan Prince and Ravi Kiran. Thanks to all of SitePoint’s peer reviewers for making SitePoint content the best it can be! Most folks consider modules, dependency management and dynamic loading a basic requirement for any modern programming language—these are some of the most important features added to JavaScript in 2015. Modules are used extensively in Node but our
How to Install npm, Master npm Commands & Use Packages
This step-by-step guide will show you how to install npm, and master common commands in the Node Package Manager (npm) command-line interface. Node.js makes it possible to write applications in JavaScript on the server. It’s built on the V8 JavaScript runtime and written in C++ — so it’s fast. Originally, it was intended as a server environment for applications, but developers started using it to
JavaScript Goes Asynchronous (and It's Awesome) — SitePoint
October 20, 2015JavaScript Goes Asynchronous (and It’s Awesome) Key Takeaways JavaScript’s evolution has seen vast improvements in handling asynchronous code, particularly through ECMAScript 5, 6, and 7. ECMAScript 5 uses callbacks for asynchronous programming, which can lead to complexity due to the non-linear execution order inherent in asynchronous code. ECMAScript 6 introduces promises, which
Immutability in React — SitePoint
In my previous article I wrote about the hows and whys of immutability. I argued that one area where immutability truly shines is in tracking changes, one of the big challenges in modern front-end frameworks. In this article I will give you an example of how immutability can be used with React, a library developed by Facebook. This article won’t discuss the basic of React. If you need an introduct
Understanding ECMAScript 6: Class and Inheritance — SitePoint
This article is part of a web dev tech series from Microsoft. Thank you for supporting the partners who make SitePoint possible. I’d like to share with you a series of articles about ECMAScript 6 , sharing my passion for it and explaining how it can work for you. I hope you enjoy reading them as much as I did writing them. First, I work in Microsoft on the browser rendering engine for Project Spar
Delayed Job Best Practices — SitePoint
The need to execute tasks asynchronously, out of the HTTP request handling cycle, will sooner or later appear in all web applications. One gem that can help you handle this need is delayed_job. There are others too, like resque and Sidekiq. I have used many of them and I have to say that I really like delayed_job because it integrates so well with my RDBMS backend (usually, either MySQL or Postgre
15 JavaScript Libraries for Creating Beautiful Charts — SitePoint
It’s practically impossible to imagine any dashboard without graphs and charts. They present complex statistics quickly and effectively. Additionally, a good graph also enhances the overall design of your website. In this article, I’ll show you some of the best JavaScript libraries for graphs and charts. These libraries will help you create beautiful and customizable charts for your future project
Anatomy of a JavaScript MV* Framework — SitePoint
September 25, 2014Anatomy of a JavaScript MV* Framework The key to quickly learning JavaScript MV* Frameworks is to break them down into a series of features. The main features of an MV* application are routing, data binding, templates/views, models, and data access. In this post I’ll describe these features and show code examples from AngularJS, Backbone, and Ember for each feature. You will begi
The Complete Guide to Reducing Page Weight — SitePoint
Total page weight increased by 32% in 2013 to reach a ludicrous 1.7Mb and 96 individual HTTP requests. That’s an average figure; half of all sites will be larger. Website obesity has become an epidemic and we web developers are to blame. There are no excuses. An overweight site will adversely affect your bottom line: The larger the download, the slower the experience. Not everyone has a 20Mb conne
Best Web Designing Frameworks for 2014 — SitePoint
December 19, 2013Best Web Designing Frameworks for 2014 Starting a new year could hardly get any better for web designers than this. We have some of the best and most powerful web designing frameworks just waiting to be explored. These are frameworks that can help you build fully functional web templates within minutes and with extremely minimal knowledge of CSS and JavaScript coding. There are gr
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