Expert Contributors Articles

Artturi Jalli

Updated on May 22, 2025

jQuery is an open-source JavaScript library of pre-built code solutions that make it easier to use JavaScript on your website, including for tasks like HTML document traversal and manipulation, event handling, animation and Ajax.

Satyapriya Chaudhari

Updated on May 22, 2025

Descriptive statistics describe data through numbers — like mean, median and mode — and graphical methods — like histograms, box plots and pie charts — to make data easier to understand. Here’s an in-depth look at how to calculate them.

Edoardo Romani

Updated on May 22, 2025

There are a lot of resources to help you become a better data scientist. Here’s my experience with one of them — the good and the bad.

Peter Grant

Updated on May 22, 2025

GAAP (the generally accepted accounting principles) is a set of rules that public U.S. companies must follow to ensure consistent and accurate financial reporting. Here’s an overview of the 10 principles that make up GAAP and why GAAP matters.

Katlyn Gallo

Updated on May 22, 2025

A gigabyte (GB) is a form of digital measurement used to describe the size of information on a system or the capacity of storage available on a disk or other digital storage media. A gigabyte is equal to one billion bytes.

Sara A. Metwalli

Updated on May 22, 2025

Node package manager (npm) is the default package manager for the Node.js runtime environment and a software registry for JavaScript software packages. Here’s what you need to know to install and use npm.

Vikram Gupta

Updated on May 22, 2025

A repository (or repo) is a centralized location where project files and resources are stored. It allows for collaboration, version control and organization of a software system. Here’s how a repository works and how to create your own.

Mitchell Telatnik

Updated on May 22, 2025

A firewall is a security device that monitors and regulates incoming and outgoing network traffic based on a set of rules. Here’s how firewalls work, their advantages, main types and common applications.

Michael Galarnyk

Updated on May 22, 2025

This Python dictionary tutorial covers how to define and access values in a dictionary, how to iterate through a dictionary and various dictionary methods.

Hailley Griffis

Updated on May 22, 2025

Onboarding is the process of integrating a new employee into the organization by familiarizing them with relevant tools, workplace policies and the company culture. Here’s why it matters and some examples to consider.