import { functionName } from './anotherFile'; 这里的functionName是需要调用的函数名,./anotherFile是需要引入的文件路径。 确保被调用的函数在另一个文件中被导出。在anotherFile.js中,你可以使用ES6的模块导出语法将函数导出,例如: 代码语言:txt 复制 export function fu
export function Profile() { // ... } Then,importProfilefromGallery.jstoApp.jsusing a named import (with the curly braces): import { Profile } from './Gallery.js'; Finally,render<Profile />from theAppcomponent: export default function App() { return <Profile />; } ...
importReact, { Component }from'react';importButtonfrom'./Button';// Import a component from another fileclassDangerButtonextendsComponent{ render() {return<Buttoncolor="red"/>; } }exportdefaultDangerButton; Be aware of thedifference between default and named exports. It is a common source of ...
AI代码解释 // This is used to create an alternate fiber to do work on.functioncreateWorkInProgress(current,pendingProps,expirationTime){varworkInProgress=current.alternate;if(workInProgress===null){// We use a double buffering pooling technique because we know that we'll// only ever need at ...
Another enhancement is to provide users with feedback on the progress of their file upload. import './App.css'; import React, { useState } from 'react'; import axios from 'axios'; function App() { const [file, setFile] = useState(); ...
import React, { useState } from "react"; import { FileUploader } from "react-drag-drop-files"; const fileTypes = ["JPG", "PNG", "GIF"]; function DragDrop() { const [file, setFile] = useState(null); const handleChange = (file) => { setFile(file); }; return ( <FileUploader ...
import React from 'react'; import logo from './logo.png'; // Tell Webpack this JS file uses this image console.log(logo); // /logo.84287d09.png function Header() { // Import result is the URL of your image return ; } export default Header; This ensures that when the project is...
Decorators are a useful feature from ES7. They allow you to augment the behavior of a function or class by wrapping it inside another function. For example, let’s assume that you want to have the same change handler on some of your components, but you don’t want to commit to the in...
Function,// If set, "sessionLostComponent" is not displayed, and onSessionLost callback is called insteadconfiguration:{client_id:String.isRequired,// oidc client idredirect_uri:String.isRequired,// oidc redirect urlsilent_redirect_uri:String,// Optional activate silent-signin that use cookies ...
import React from 'react'; import logo from './logo.png'; // Tell Webpack this JS file uses this image console.log(logo); // /logo.84287d09.png function Header() { // Import result is the URL of your image return ; } export default Header; This ensures that when the project ...