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5 min readPattern matching is a powerful feature in Haskell that allows you to destructure and extract information from data structures. It allows you to define functions and expressions based on different patterns that the input can match. Here's a brief explanation of how to use pattern matching in Haskell:Function Definitions: When defining functions, you can use pattern matching in the function definition. Each pattern corresponds to a specific input case.
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4 min readIn Haskell, functions are defined using the keyword "let" followed by the function name, a list of arguments, an equal sign, and the function body. The function body specifies what the function does when applied to its arguments. Here's the general syntax:let functionName arg1 arg2 ... = functionBodyThe arguments are separated by spaces, and the function body can be any valid Haskell expression.
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10 min readTo deploy MODX on cloud hosting, you can follow these steps:Choose a cloud hosting provider: Look for a reliable cloud hosting provider that supports MODX. Popular options include Amazon Web Services (AWS), Google Cloud Platform (GCP), and Microsoft Azure. Set up a server instance: Once you have chosen a cloud hosting provider, create a new server instance. This typically involves selecting the server type, region, and configuration options.
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5 min readIn Haskell, variables are immutable, meaning once a variable is assigned a value, its value cannot be changed. To declare a variable in Haskell, you can follow the syntax: variableName :: type variableName = value Here, variableName is the name of the variable you want to declare. type represents the type of the variable, such as Int, Char, or a custom data type. Finally, value is the initial value you want to assign to the variable.
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7 min readStructs in Go are a way to define and encapsulate a collection of fields into a single named entity. They are similar to classes in object-oriented programming languages. Structs allow you to create complex data structures by combining different types of fields.To define a struct, you use the type keyword followed by the name of the struct and the keyword struct. Inside the struct, you list the fields, where each field has a name and a type.
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7 min readTo install Haskell on your computer, you can follow the steps below:Visit the official Haskell website at haskell.org.Click on the "Downloads" or "Get Started" section on the website.Choose the appropriate installer based on your operating system (Windows, macOS, or Linux).Download the installer file for Haskell.Once the download is completed, locate the installer file on your computer.Run the installer by double-clicking on it.
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6 min readIn Haskell, variables are immutable, which means their values cannot be changed once they are assigned. Therefore, it is not possible to directly re-assign a variable to a new function. However, there are alternative ways to achieve similar effects.One way is to use recursion to create a new function that incorporates the changes you want. This involves defining a new function with a different name, and using the original variable as an argument.
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4 min readTo open a Haskell file (.hs) on a Mac, you can follow these steps:Locate the Haskell file you want to open. It will usually have a ".hs" extension.Click on the file to select it.Right-click on the file and select "Open With" from the context menu.A list of applications will appear. If you have a Haskell development environment (such as GHCi or GHCI.app) already installed on your Mac, you can choose that.
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7 min readDiscourse is a modern, open-source discussion platform that can be hosted on various cloud hosting providers. If you want to launch Discourse on cloud hosting, here's a general outline of the steps involved:Choose a Cloud Hosting Provider: Select a cloud hosting provider that best fits your requirements and budget. Some popular options include AWS (Amazon Web Services), Google Cloud Platform, and DigitalOcean.
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5 min readTo read a string in Haskell, you can use the getLine function. Here is a step-by-step explanation of how to do it:Import the System.IO module at the top of your Haskell file with the line import System.IO. Use the getLine function to read input from the user. getLine returns an IO String, which represents an action that, when executed, will produce a String value. Store the result of getLine in a variable.
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6 min readTo create a random boolean generator in Haskell, you can make use of the random and randomRIO functions from the System.Random module. Here's an explanation of the steps involved:Import the System.Random module: Begin by importing the System.Random module into your Haskell program. Define a function for generating random boolean values: Create a function, let's call it randomBool, that returns a random boolean value.