Build a contact management system using Redux in React. Your redux store will be in charge of maintaining and updating your contact list. You will create actions that when sent to the reducer: * add a new user to an array of contacts * delete an existing user from the array The
A Regular Expression is simply a sequence of characters that define a search pattern. Regular expressions can be given to languages like Javascript to have it search a string for matches to the regular expression pattern. This article is an introduction to regular expressions and some of their practical uses.
setInterval and setTimeout are two of the higher order functions in Javascript. Higher order functions take a function as one of their arguments like we see below: setTimeout(function(){}); setInterval and setTimeout provide a way for you to tell your program to run a function or evaluate an expression after