What are the requirements of a class based component in React.js?

How to use class based components in React.js? » Before implementing a class based component, you must be aware of the requirements for a class based component: A class based component should be a valid Javascript class It should be able to extend React.Component (pre-built) class It must have a render() method that returns some … Read moreWhat are the requirements of a class based component in React.js?

How to handle asynchronous operations in function based components in React.js?

How to use class based components in React.js? » Now, let’s assume you want to see the active hours in place of “Hello World” in the web browser instead of console window. You may make some changes to the code and expect it to work (setTimeout() is an asynchronous operation): import React from ‘react’; import … Read moreHow to handle asynchronous operations in function based components in React.js?

How to get current date and time in functional component in React.js?

How to use class based components in React.js? » In this section you’re going to learn how to get user’s current time and get hours from the time. You’re also going to simulate an API, such that it’d look like it takes 3 seconds to get the current hour in your time zone. Write the … Read moreHow to get current date and time in functional component in React.js?

How to use class based components in React.js?

How to use class based components in React.js? » In this section you’re going to learn how to use class based components as opposed to what you’ve seen so far (function based components). There are multiple reasons why you’d prefer using class based components over functional components. Some of the reasons that I can think … Read moreHow to use class based components in React.js?

How to pass component as a Prop in React.js?

How to use Components in React.js?» Then, go to index.js file and import LayoutSection by adding: import LayoutSection from ‘./LayoutSection’; Now, you want to put NewsSection component inside the LayoutSection component. A component can be broken down as: <LayoutSection></LayoutSection>. Inside of these, you are going to pass NewsSection component as a prop, for instance: <LayoutSection> … Read moreHow to pass component as a Prop in React.js?

How to reuse components in React.js?

How to use Components in React.js?» Now you’re going to create a new component called LayoutSection, inside of which you’ll be putting the NewsSection component. Keep in mind, LayoutSection is going to be an independent section which can contain other components as well. That means, NewsSection won’t be hardcoded inside the LayoutSection.LayoutSection component will have … Read moreHow to reuse components in React.js?

How the Props (Properties) system works in React.js?

How to use Components in React.js?» React uses an inheritance system called the props. In the app you’re building, you have a component called App() component. Under this component, there are three more components named NewsSection. The App() component is called a parent component while the NewsSection component here is called a child component. You … Read moreHow the Props (Properties) system works in React.js?

How to export and import components in React.js?

How to use Components in React.js?» Finally you have created a NewsSection.js file that contains the NewsSection component. However, the component you’ve created cannot be directly accessed by index.js file even if both the files are inside the same directory.First, you need to export the NewsSection component from NewsSection.js file. And by export, I really … Read moreHow to export and import components in React.js?

How to create reusable components in React.js?

How to use Components in React.js?» Now, you’ll see how to create reusable components instead. This is something that you’ll most likely use in all of your React projects. There are five major steps that you need to follow to create a reusable component. Step 1: Find the repeated portion of the JSX component If … Read moreHow to create reusable components in React.js?