ubuntuask.com
-
6 min readTo find the difference of array elements in Groovy, you can subtract each element from the next in a loop and store the results in a new array. Here is an example code snippet that demonstrates this process: def elements = [1, 3, 5, 7, 9] def differences = [] for (int i = 0; i < elements.size() - 1; i++) { differences.add(elements[i + 1] - elements[i]) } println differences In this code, we have an array called elements with some integer values.
-
3 min readTo count unstaged files in git, you can use the following command: git status --porcelain | grep '^.' | wc -l This command will output the number of unstaged files in your git repository.[rating:ac02108b-fd50-45de-b562-c8e4d0f6fbc8]How can I determine the number of unstaged files in my git working directory.
-
2 min readIn Groovy, "${p: ...}" is a way to access or reference a variable in a string interpolation. The variable 'p' can be any valid Groovy expression or variable that you want to include in the string. By using ${p: ...} within a string, Groovy will evaluate the expression or variable and substitute its value in the final string output. This allows for dynamic content to be included within a string without the need for concatenation or formatting functions.
-
3 min readYou can exclude commits from Git by using the git rebase command. This allows you to modify the commit history by removing or changing specific commits. To exclude a commit, you can use the git rebase -i command to open an interactive rebase session. Then, you can choose the specific commit you want to exclude by marking it as drop or edit. Once you have finished editing the commit history, you can save and exit the rebase session to apply the changes.
-
4 min readTo get the maximum value of a list in Groovy, you can use the max() method along with the spread operator (*) to spread the list elements as arguments to the method. This will return the maximum value present in the list. Alternatively, you can also use the max{} method with a closure to define custom logic for determining the maximum value.[rating:adc0f8fb-01e6-4bd0-9ee9-5e05023d912a]How to iterate over a list in Groovy to find the maximum value.
-
5 min readTo properly reinstall Elixir, you first need to uninstall it completely from your system. This means removing all Elixir-related files, directories, and packages to ensure a clean installation. Once Elixir is uninstalled, you can then download the latest version from the official Elixir website or install it using a package manager like Homebrew or Chocolatey.
-
5 min readTo exclude a package.json file from a git merge, you can use the "git checkout" command to reset the changes made to the file before merging. First, make sure you have committed any changes to the package.json file. Then, run the command "git checkout -- path/to/package.json" to discard the changes to the file. This will remove the package.json file from the list of files to be merged. After excluding the package.json file, you can proceed with the git merge as usual.
-
4 min readVagrant is a powerful tool for managing virtual environments for your projects. If you have multiple projects that you want to manage using Vagrant, you can easily do so by creating separate Vagrantfiles for each project. This allows you to customize the configuration of each virtual environment to suit the specific requirements of each project.To use Vagrant on multiple projects, start by creating a new directory for each project and navigating to that directory in your terminal.
-
6 min readIn Groovy, the parallelStream() method can be used to create a parallel stream on a collection or an array. This method is added to the Collection and Array classes in Groovy to enable parallel processing of elements in the collection or array. By using the parallelStream() method, you can divide the collection or array into multiple chunks and process them in parallel, taking advantage of multi-core processors and potentially speeding up the processing of the elements.
-
6 min readElixir is generally considered to be faster than JRuby for a few reasons. Elixir is built on the Erlang virtual machine (BEAM), which is known for its lightweight processes and efficient concurrency model. This allows Elixir to handle a large number of concurrent tasks with ease.Additionally, Elixir is a compiled language, which means that code is typically pre-compiled into bytecode before execution.
-
4 min readTo change the remote fetch URL in Git, you can use the "git remote set-url" command. This command allows you to change the URL of the remote repository from which you fetch changes.To do this, open your terminal and navigate to your repository. Then, use the following command: git remote set-url origin <new_url> Replace <new_url> with the new URL of the remote repository.