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Tag: Software Development

Matrix Math

A feature in some other languages you may have seen is something called matrix math. These are operations you can perform on matrices, which are 2-dimensional arrays. Xojo does not have any matrix math functions built in, but using the Extends command you can add your own.

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Testing REST-based Web Services

Using Xojo’s URLConnection to communicate with web services is pretty straightforward. But testing the actual REST API calls can get tricky. To make it easier to test and experiment with REST API calls, Paul created a app in Xojo for doing just this. He called it RESTy in its original format back in 2015. You can download the updated project here built with Xojo 2022r4.1.

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Algorithm: Equally Spaced Ranges

There are some situations where you may need a range of numbers that is equally spaced. For example, when given a minimum and a maximum value within which a set of numbers that need to be equally spaced. This is useful if you are designing an UI control displaying “ticks” or for the axis of a graphic chart displaying cartesian values. Continue reading to see a technique to do just this.

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Rate Limiting a Web Application

In this blog post I’ll show how to add rate limiting to your web application.  Rate limiting is used to frustrate abuse of your application by limiting access. The same technique can be used to limit access to your API server by recording the user’s ID instead of IP Address.

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New Web SDK Examples in 2022r4

There are situations where the included controls and widgets aren’t enough. Maybe the specs of the project require the use of one or more of specific JavaScript libraries, or you just need some code to be executed in the browser. The Web SDK can help, giving you the opportunity to build anything. In 2022r4 we are adding more examples, to help you start building your custom controls.

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Linux Joins the Dark Side

While we’ve been hard at working getting Linux ARM 64 support ready for Xojo 2022r4, released earlier today, we also updated Xojo’s Linux support for Dark Mode. Color.IsDarkMode now functions properly and our Linux IDE has now officially joined the dark side.

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