Tutorial on how to access the current route, URL parameters and query parameters in React Router

Tutorial on how to align the footer with dynamic height to the bottom of the page without knowing the height, purely using CSS

Tutorial on how to check outdated dependencies and update the packages to the latest version

Tutorial on how to build a login form in HTML and to make Axios POST requests in JavaScript

Tutorial on how to make a post request in React using Axios

Tutorial on how check if a variable is defined, if a property exists in an object, and if a property exists in window.