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9 min readCreating a shared queue in Go involves using synchronization mechanisms provided by the language to ensure safe access and modification of the queue by multiple goroutines. Here is a step-by-step explanation of how to create a shared queue in Go:Define a struct for the queue: Create a struct that represents the shared queue, which will hold the necessary data fields. For example, you can define a struct with a slice to hold the elements and other fields like the size, head, tail, etc.
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9 min readTo convert a GMT date to Unix time in Golang, you can follow the steps below:First, you need to parse the GMT date string into a time.Time object using the time.Parse() function. The Parse() function takes two parameters: a layout string specifying the date format and the GMT date string to be parsed. The layout string should be based on the reference time "Mon Jan 2 15:04:05 MST 2006".
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5 min readTo create Android apps using Delphi, you need to follow a few key steps.First, you need to have Embarcadero Delphi installed on your computer. Delphi is a powerful cross-platform development tool that allows you to build applications for multiple platforms, including Android.Once you have Delphi installed, open the IDE (Integrated Development Environment) and start a new project. From the project templates, select "Mobile Application" to create a new Android app.
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4 min readTo draw a number to an image in Delphi 7, you can follow these steps:Start by creating a new project in Delphi 7 or open an existing project. Place a TImage component on your form. This component will hold the image that you want to draw the number on. You can find it in the "Standard" tab of the Component Palette. Double-click on the TImage component to open the code editor and navigate to the Form's OnCreate event handler.
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6 min readTo open a URL with HTTP authentication in Delphi, you can use the TIdHTTP component from the Indy library. This component provides functionality for making HTTP requests, including handling authentication.Here is an example of how to open a URL with HTTP authentication in Delphi:First, make sure you have the Indy components installed in your Delphi IDE. If not, you can download them from the Indy Project website. Create a new Delphi application or open an existing one.
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5 min readTo rotate a PNG image in Delphi, you can use the built-in functions and features provided by the Delphi programming language. Follow the steps described below:Load the PNG image into a TPicture object: Create an instance of TPicture: var PngImage: TPicture; Load the PNG image from a file or stream into the TPicture: PngImage.LoadFromFile('path_to_image.
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6 min readTo create an XML file in Delphi, you can follow these steps:Open your Delphi IDE and create a new project or open an existing one.Add the required XML unit to your uses clause at the top of your unit: uses ..., XMLIntf, XMLDoc; Create a new XML document object: var xmlDoc: IXMLDocument; begin xmlDoc := NewXMLDocument; end; Add a root element to your XML document: var rootElement: IXMLNode; begin xmlDoc.Active := True; rootElement := xmlDoc.
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3 min readTo get the file URL from the absolute path in Delphi, you can use the TURI class from the System.Net.URLClient unit. Here's how you can do it:Add the System.Net.URLClient unit to your uses clause: uses ..., System.Net.URLClient; Create an instance of the TURI class and pass the absolute file path to its constructor: var filePath: string; fileURI: TURI; begin filePath := 'C:\path\to\file.ext'; fileURI := TURI.
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5 min readRenaming a batch of subdirectories in Delphi can be achieved by following these steps:First, locate the main directory that contains the subdirectories you want to rename. Use the Delphi TDirectory class to retrieve a list of all the subdirectories within the main directory. You can use the GetDirectories method, which returns a string array. Iterate through the array of subdirectories using a loop, such as a for loop, to process each subdirectory.
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7 min readTo send data between JavaScript and Delphi, you can use various techniques such as:AJAX requests: JavaScript can send HTTP requests to a Delphi backend using APIs like XMLHttpRequest or fetch. On the Delphi side, you can handle these requests, parse the data, perform any necessary processing, and send back a response to JavaScript.Example JavaScript code for sending an AJAX request to a Delphi backend: var xhr = new XMLHttpRequest(); xhr.
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4 min readIn Delphi, empty characters or white spaces are defined using the AnsiSpace constant.This constant represents the white space characters including space (' '), tab (#9), line feed (#10), carriage return (#13), and vertical tab (#11). It is defined in the SysUtils unit.To check if a character is empty, you can make use of the AnsiChar type's built-in functions like IsSpace, IsControl, or IsWhiteSpace.