Use import/export (ES6 Module) to Import JS File Into ReactJS Let’s begin by importing and exporting using the ES6 method. But, first, create the method and constants listed below in a file called helper.js. export function greetFunction(name) { return `Hello, ${name}`; } export cons...
Then, we'll create a new component calledSingleFileUploaderinsrc/components/SingleFileUploader.tsx. For starters, we will show how to add a file picker in React and have the user interact with it. Here's the code: Copy importReact,{useState}from'react';constSingleFileUploader=()=>{const[...
FileSystem .downloadAsync(URL, LocalPath) // A function to download and open the file .then(({uri}) => Linking.openURL(uri)); // Linking the URL } When you run the app, you’ll get the below output.Output:Note that the code shared above is created in React-Native, and we ...
For instance, you can use refs to give focus on an input field when a button is clicked:import * as React from "react"; import ReactDOM from "react-dom"; export default function App() { const ref = React.useRef(); function focus() { ref.current.focus(); } return ( Focus...
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).toMatchSnapshot(); }); Mocking dependencies ...
Revisit yourDropzoneComponentand modify it to useisDragActive,isDragAccept, andisDragRejectwhen applied to JPEG and PNG image file types: src/DropzoneComponent.js importReact,{useCallback,useMemo}from'react';import{useDropzone}from'react-dropzone';constbaseStyle={display:'flex',flexDirection:'column...
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); ...
import{ useState }from'react'importreactLogofrom'./assets/image/react.svg'import'./assets/js/file-upload.js'functionFileUploadApp() {const[fileProperties, setFileProperties] =useState({file:null,fileType:null,fileName:null, });const[isUploadAction, setUploadAction] =useState(false);constsetFilePr...
npx create-react-app wagmi-project && cd wagmi-project && npm i wagmi bootstrap tip If you run into an installation error with wagmi, use the legacy API flag:npm i wagmi --legacy-peer-deps Then, open the project in a code editor and navigate to theApp.jsfile. Replace the existing...
I am used following way to read yaml file in React js import React from 'react'; import logo from './logo.svg'; import './App.css'; import data from "./data.yml"; const title = data; function App() { return ( this is yml{data.version}{title} ...