Ihor Vyspiansky vyspiansky

Debug Jest Tests in Visual Studio Code

How to start a new Node.js project:

npx license mit > LICENSE
npx gitignore node
npx covgen YOUR_EMAIL_ADDRESS
npm init -y

whoami

Run arbitrary commands inside an existing container:

docker ps
docker exec -it <mycontainer> bash

To generate a list of installed packages

sudo dnf list installed | cat -n

Suppose you want to see all packages that start with x

i)

dnf install postgresql-server

// @ts-expect-error

sudo service apache2 restart

	/**
	* Groups an array of objects by object property
	*/
	const groupBy = <T>(array: T[], key: keyof T): { [key: string]: T[] } => {
	return array.reduce((accumulator: { [key: string]: T[] }, currentElement: T) => {
	const keyValue = currentElement[key] as unknown as string;

	if (keyValue in accumulator) {
	accumulator[keyValue].push(currentElement);
	} else {

	// This function is quite flexible because it can handle any number of input arrays and
	// doesn't require them to be of equal length. It interleaves as many elements as possible
	// from each array, in the order that the arrays (and elements) were provided.

	/**
	* Interleaves elements of multiple arrays.
	* The function takes any number of arrays as arguments.
	*/
	function interleaveArrays(...args) {
	// Find the maximum length among all arrays