You should use descriptive names that specify what you’re testing in a component and what should be the expected outcome. Make use of CI/CD pipelines to automate your tests, ensuring the software is always wor
React-responsive is one such package which is owned by Contra and has more than 50 contributors. This package allows you to declare various responsive media query big break points as variables that can be used with a layer of logic in your react components. 3. Flexbox Flexbox (Flexible Box...
Either way, we are tellingslicethe method to copy the last 2 elements of the array and put them into a new array. Even if we try to get more elements than the array contains,Array.sliceno error is thrown, instead a new array containing all the elements is returned. constarr = ['a'...
Note:You often use linting tools like ESLint in your React project because it checks your code to detect potential errors that can break your code either now or in the future. This tool forces you to import React when it detects any JSX around the file. When you are sure your React ver...
All these files are child components, or independent components we are going to use into a parent component calledindex.js. Open the fileindex.jsand create three different variables into the state, like this.: constructor() {super();this.state= {name:"React",showHideDemo1:false,showHideDemo...
Your development environment should have Node.js installed because we're going to use npm or yarn for handling our packages. This requirement is a given since you're working with React, but no harm in making sure, right? # Check if Node is installed node --version # Check if npm is in...
Find out the ways you can use to break out of a for or for..of loop in JavaScriptTHE AHA STACK MASTERCLASS Now open with 50% off launch discount! Say you have a for loop:const list = ['a', 'b', 'c'] for (let i = 0; i < list.length; i++) { console.log(`${i} ...
Let’s double-check that things are still working by running the project to ensure we didn’t break anything. Notice, herereact-scriptswill automatically detect the new changes and modify ourtsconfig.jsonfor us! Voila! How beautiful is that?
Next, opensrc/App.jsand delete everything inside. We won’t need it anyway. Let’s use this opportunity to see how our User card looks like with some plain data. // src/App.jsimportReactfrom"react";classAppextendsReact.Component{render(){return<User name="Jessica Doe"avatar="..."emai...
Let’s review how you can use email and in-person cold pitching to find new web design clients: Email The ability to contact prospects over email is both a blessing and a curse—a blessing in that you have direct access to your ideal clientele. But email can also be a curse in that ...