Posts - Page 119 (page 119)
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4 min readIn Elixir, a double loop can be implemented using nested Enum.each functions or by using a combination of Enum.map and Enum.reduce functions.You can iterate over two lists simultaneously by using Enum.zip function and then apply a function to each pair of elements.Another way to implement a double loop in Elixir is by using a recursive function that iterates over each element in one list and then applies a function to each element in the second list.
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5 min readTo get ignored files with git, you can use the command git status --ignored. This will show you a list of files that are being ignored by git based on your .gitignore rules. These ignored files will not be tracked or included in your version control system. This command can help you ensure that sensitive or unnecessary files are not being accidentally included in your git repository.[rating:ac02108b-fd50-45de-b562-c8e4d0f6fbc8]What is the role of the .git/info/exclude file?The .
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5 min readTo define network settings with Vagrant, you can use the config.vm.network configuration option in your Vagrantfile. This option allows you to specify the network settings for your virtual machine, such as the IP address, private or public network, port forwarding, and more.For example, to define a private network with a static IP address for your virtual machine, you can use the following code in your Vagrantfile: Vagrant.configure("2") do |config| config.vm.
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4 min readTo get the minimum and maximum values from a group array in Groovy, you can use the min() and max() methods provided by the Groovy Collections API. These methods can be applied directly to the group array to retrieve the minimum and maximum values respectively. The min() method will return the smallest value in the group array, while the max() method will return the largest value. You can use these values for further processing or calculations in your Groovy code.
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6 min readTo enforce a "no spaces in filenames" policy in Git, you can configure a git hook that runs checks on file names before they are committed to the repository. This can be done by creating a pre-commit hook script that uses regular expressions to check for spaces in file names and prevent the commit if any are found. The script can also provide a helpful error message to the user indicating that spaces are not allowed in file names.
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3 min readTo implement to_query(data) in an Elixir struct, you can define a function within the struct module or a separate module that takes the struct as a parameter and returns a query string representation of its data.For example, you can define a function to_query in your struct module that pattern matches on the struct fields and constructs a query string using interpolation or string concatenation.
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5 min readTo change the MySQL environment in a Vagrant server, you will first need to access the server's terminal. Once logged in, you can use the following commands to make changes:Stop the MySQL service by running the command: sudo systemctl stop mysql Edit the MySQL configuration file using a text editor such as nano or vi. The configuration file is usually located at /etc/mysql/my.
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4 min readTo generate numbers in order from 1 to 10000 in Groovy, you can use a for loop and iterate over the range of numbers from 1 to 10000 using the eachWithIndex method. Here's an example code snippet to achieve this: (1..10000).eachWithIndex { num, index -> println(num) } This code will print out numbers from 1 to 10000 in order. You can customize this code as per your requirements, such as storing the numbers in a list or performing some operations on each number.
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3 min readTo remove folders and files from git, you can use the "git rm" command followed by the name of the file or folder you want to remove. This command will stage the file or folder for removal from the repository. To actually remove the file or folder from the repository, you will need to commit the changes using the "git commit" command.
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7 min readTo reduce the size of a Vagrant VM image, one can start by cleaning up unnecessary files and packages in the virtual machine. This can include removing old logs, caches, and temporary files that are taking up space. Additionally, uninstalling unnecessary software or packages can help decrease the overall size of the VM image.Another way to reduce the size of the Vagrant VM image is to compact the disk. This can be done by zeroing out unused space on the disk and then shrinking the disk image.
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9 min readTo connect to a web server and authenticate a user using Groovy, you can use the built-in HTTPClient library provided by Groovy. First, you need to create an HTTPClient object and define the URL of the web server you want to connect to. Then, you can set up the authentication credentials by including them in the request headers using the setHeaders method. Finally, you can send a request to the server using the get or post method, depending on the type of request you need to make.
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3 min readIn Elixir, &+/2 is a special syntax that represents a function in the form of an anonymous function. In this case, the function name is "&+", which takes two arguments. This syntax is commonly used in Elixir when working with functions that require multiple arguments, and allows for increased flexibility in defining and using functions throughout the codebase.