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Category: Web

Posts related to web development.

Making a Web App: Comparing Xojo and Visual Studio for Mac

In previous articles, I’ve written about how Xojo is often much, much easier to use and more capable than Visual Studio for Mac for creating Mac and cross-platform desktop apps.

Visual Studio can also create web apps and as it would turn out, you may find that Xojo is a better option for web apps.

Technically, Visual Studio for Mac can create ASP.NET Core Web Apps. These type of web apps use the ASP.NET framework, but do not provide a form (layout editor) for your app’s user interface. Instead you’ll have to create everything in code, including mapping UI actions to corresponding code. ASP.NET Core also requires you to use the MVC (model-view-controller) design pattern, which can be a bit daunting for beginners.

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JSON Feed Web App

Recently, a new syndication format was introduced by Brent Simmons and Manton Reece called JSON Feed. It is an alternative to RSS/Atom to get feeds for blog posts and podcasts. RSS/Atom are XML-based, making them complex to work with. As its name implies, JSON Feed uses JSON and is much simpler.

In fact, it is so simple that you can easily make web, desktop and iOS apps with Xojo to display the feed. In this post, I’ll show you how to create a Xojo web app to display the JSON feed for Daring Fireball in less than 20 lines of code.

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The Ultimate Password Solution

World Password Day brings attention to some simple steps everyone can take to secure their digital life: 1. Create Strong Passwords, 2. Use a different password for each account, and 3. Get a password manager, no, not a post-it note in your desk drawer!

The best password is one that is diffcult to guess. But difficult to guess takes on a new meaning when hackers use computers to do the guessing. Hence, the best password becomes one that would take a computer so long to guess that it’s not practical to do so. That means a long series of random characters and the longer and more random, the better, and a different password for every site you use.

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There’s No Excuse For Storing Passwords

A few years ago it was reported that Russian hackers had stolen 1.2 billion usernames and passwords from a variety of websites. This was only possible because those websites were storing the actual password. Because it’s World Password Day and because this is web security 101, let’s discuss why there’s really no excuse for a website to store your password – ever.

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TextField: Getting the User Input

Xojo is a modern, powerful programming language with an IDE that simplifies all kind of tasks related your project creation and deployment. One such helpful feature is the UI layout design; you can find it under the Library Panel, it’s a meaningful collection of graphic classes (Controls) ready to use in our apps. Probably one of the first and most used controls in apps design is the TextField, TextField simplifies the way an app can get the input from the user. Let’s see its main properties and how this control behaves when used in Desktop, Web (WebTextField) and iOS (iOSTextField) apps!

You can watch the video (in Spanish, with English subtitles) as you read and work through this post.

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Database Usage with Web Apps

Using databases with web apps is not much different than using them with desktop apps, but there are a few things to keep in mind. The most important thing to note is that a web app allows multiple users. This means you’ll want your database connection to be unique for each user that connects to the web app, rather than global to the app itself (as is common in desktop apps). The simplest way to ensure this is to create the connection to your database in the WebSession.Open event handler, saving a reference to the connection as a property that you add to WebSession.

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Xojo Programming Language: 6 Fascinating Facts

Xojo is similar to VB, Java and C#

The Xojo programming language is fully object-oriented and uses an object model that is quite similar to VB, Java and C#. If you are used those languages at all, you’ll be right at home with Xojo.

Available since 1998, Xojo was one of the first languages to use Automatic Reference Counting (ARC), something that other languages such as Swift and Objective-C now use. Xojo is type-safe and fully object-oriented making it easy to learn and use, but it also has advanced features such as namespaces, extension methods, exception handling, introspection, delegates and more.

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