https://reactjs.org/docs/typechecking-with-proptypes.html Type Checking Type checking is an important principle in programming. JavaScript lets you get away with a lot of potentially hazardous coding practices. Consider the following: When you code let a = 1 and then let a = 2, JavaScript yells at you and breaks. But
React Developer Tools Developing React apps becomes a lot more pleasant when you utilize the React Devtools. In many ways, it looks like your DOM tree does in the elements tab, and you will explore it in the same way. Installation Go to https://chrome.google.com/webstore/detail/react-developer-tools/
Each problem is marked using Ski Slope difficulty ratings. Become a double black diamond ES6 writer! Rest and Spread Operator Use the Rest Operator to help this function return an array of animals, no matter how many animals are passed to it: function collectAnimals(/*your code here*/) { /*and here*/ } collectAnimals(
You are starting a website for a friend. To start, just make a cool Navbar using Bootstrap. Customize it. If it's a website for your friends flower shop, you could change the background color and the color of the links. Don't worry about making the links go anywhere, but they
The exercise will get progressively harder. You should at least strive to get one medal, but please try to go the extra mile! Also, feel free to practice using ternary statements for extra credit too! Preliminaries 1. Write an if statement that prints "is greater than" if 5 is greater