Testing is one of the most important aspects to React development. Without tests, you can’t have confidence that your code will work as it’s supposed to do. For testing purposes, it can be relevant to mock a
We can also make our state type-safe by creating an interface for it and passing it as a parameter toComponent: importReact,{Component}from'react';interfaceTitleProps{title:string;subtitle?:string;}interfaceTitleState{counter:number;}classTitleextendsComponent<TitleProps,TitleState>{// ...}export...
Another way to make your React components more reusable is to use the generic/specialized pattern. This pattern is quite simple: you create a generic component that’s highly reusable and then build more specialized ones on top of it. Say we created a generic form component that can render a...
Reference a little more of the 3rd party library in the app. Build the app and compare the bundle file sizes. If the bundle size hasn’t changed, the 3rd party library may not be tree shaking. Wrap up In summary, to ensure a React component library is tree shakeable: Include ESM forma...
We can also make our state type-safe by creating an interface for it and passing it as a parameter toComponent: importReact,{Component}from'react';interfaceTitleProps{title:string;subtitle?:string;}interfaceTitleState{counter:number;}classTitleextendsComponent<TitleProps,TitleState>{// ...}export...
A responsive web application is designed to adapt its layout and functionality across different screen sizes to ensure a smooth and consistent user experience, no matter the device. Developers must actively plan and implement responsiveness within their React apps to ensure they perform well across ...
Write a Snapshot test for the previous test. import React from 'react'; import renderer from 'react-test-renderer'; import HelloWorld from './HelloWorld'; test('renders correctly', () => { const component = renderer.create(<HelloWorld />); const tree = component.toJSON(); expect(tree)...
Here’s an example of how to create a simple React component using ReExt: import React, { useState, useRef } from 'react'; import ReExt from '@gusmano/reext'; const App = () => { const [labelcmp, setLabelCmp] = useState(null); const labelcmpRef = useRef(); labelcmpRef.current...
This tutorial shows how to build a React PowerPoint viewer using Nutrient Web SDK, which converts Office documents to PDF directly in the browser without server-side processing. You’ll create a React project with Vite, add the Nutrient dependency, and implement a component to display PPT/PPTX...
To start, make a new project. On your command line run the following script to install a fresh project usingcreate-react-app: npx create-react-appjsx-tutorial Copy After the project is finished, change into the directory: cdjsx-tutorial ...