ProgrammingCategory

programming

I used the dotnetfiddle.net online tool to test with the C# programming language. The test is about the ref and out keywords and how these works. First, the ref keyword indicates that a value is passed by reference. It is used in four different contexts, see the documentation. The out… Continue Reading C# – First steps with C# and .NET – part 038.

In this tutorial, I will show you how to install and work with Avalonia and Avalonia.Templates. First, about Avalonia: Avalonia is a WPF/UWP-inspired cross-platform XAML-based UI framework providing a flexible styling system and supporting a wide range of Operating Systems such as Windows (.NET Framework, .NET Core), Linux (via Xorg),… Continue Reading C# – First steps with C# and .NET – part 037.

The name Lua comes from Portuguese meaning moon and is a lightweight, high-level, multi-paradigm programming language designed primarily for embedded use in applications. Lua was originally designed in 1993 as a language for extending software applications to meet the increasing demand for customization at the time. Lua is cross-platform since… Continue Reading Lua – first steps – part 001.

In brief: JSDoc is a markup language used to annotate JavaScript source code files. Using comments containing JSDoc, programmers can add documentation describing the application programming interface of the code they’re creating. This is then processed, by various tools, to produce documentation in accessible formats like HTML and Rich Text… Continue Reading Google Apps Script – annotations – part 037.

Open a Spreadsheet and rename the Sheet to test001. Use the next source code:

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function sendMap() {
  //var sheet = SpreadsheetApp.getActiveSheet();
  var sheet = SpreadsheetApp.getActive().getSheetByName('test001')
  var address = sheet.getRange('A1').getValue();
  var map = Maps.newStaticMap().addMarker(address);
  GmailApp.sendEmail('catafest@yahoo.com', 'Map', 'See below.', {attachments:[map]});
}

This will send a mail to my email address with a map from the address in column A1.

Opening Visual Code can be done simply with the command:

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code

Opening Visual Studio does not always work with this command:

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devenv
'devenv' is not recognized as an internal or external command,
operable program or batch file.

As a type and trick, the project file can be run directly on the command line:

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C:\CSharpProjects\001>001.csproj

In this tutorial, I tested a collinear function for three points. I also recapitulated access to the method and class without using lambda expression with this calculation method. The example contains two classes. A class is simple for recapitulating knowledge and can be tested by commenting and uncommenting the source… Continue Reading C# – First steps with C# and .NET – part 035.

This is a simple Google Apps Script for read a atom RSS file type. This not work with any rss file type , just with this type:

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xmlns:atom="http://www.w3.org/2005/Atom"

This is the script:

JavaScript
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function RSSRead()
{
  var sheet = SpreadsheetApp.getActiveSheet();
  var item, date, title, link, desc;
 
  var txt = UrlFetchApp.fetch("http://free-tutorials.org/feed/").getContentText();
  var document = XmlService.parse(txt);
  var root = document.getRootElement();
  var entries = root.getChildren('channel');
  Logger.log(entries);
  for (var i = 0; i < entries.length; i++) {
    var link = entries[i].getValue();
    for (var j = 0; j < link.length; j++) {
      var link = entries[j].getValue();
    Logger.log(link);
    }
}

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