Adding an .env file to a React project - Stack Overflow
2021年9月1日 · Four steps. npm install dotenv --save. Next, add the following line to your app. require ('dotenv').config () Then create a .env file at the root directory of your application and add the variables to it. // contents of .env REACT_APP_API_KEY = 'my-secret-api-key'.
In reactJS, how to copy text to clipboard? - Stack Overflow
Use this simple inline onClick function on a button if you want to programatically write data to the clipboard. onClick={() => {navigator.clipboard.writeText(this.state.textToCopy)}} edited Oct 28, 2018 at 3:04. answered Aug 27, 2018 at 6:14.
javascript - How to allow CORS in react.js? - Stack Overflow
2017年9月21日 · In my case of running Next.js front-end server + Express API back-end server running on same machine, instead of "*" I did "localhost:[next.js port]" to fix this. Didn't need the second res.header line.
How to import image (.svg, .png ) in a React Component
import React, {Component} from 'react'; import imagename from './imagename.png'; //image is in the current folder where the App.js exits class App extends React.
javascript - How can I perform a debounce? - Stack Overflow
Call function when stop typing React Js. 0. make a delay in a method call. 0.
How to use the increment operator in React - Stack Overflow
2016年9月4日 · React may batch a bunch of setStates together. So the value of this.state.count is the value at the time you make the request. A better solutions to call a function that gets evaluated at the time the setState gets executed.
Wait 5 seconds before executing next line - Stack Overflow
Inside an async scope (i.e. an async function), you can use the "await" keyword to wait for a Promise to resolve before continuing to the next line of the function. This is functionally equivalent to putting the lines after await into the setTimeout callback and not using async/await at all.
javascript - How to access a DOM element in React? What is the ...
2016年6月29日 · Learn how to access DOM elements in React and find alternatives to document.getElementById() with practical examples and solutions.
What is the best way to redirect a page using React Router?
Actually it depends on your use case. 1) You want to protect your route from unauthorized users. If that is the case you can use the component called <Redirect /> and can implement the following logic: import React from 'react'. import { Redirect } from 'react-router-dom'. const ProtectedComponent = () => {.
How to handle the `onKeyPress` event in ReactJS?
How to trigger keypress event in React.js. 8. React js call to a function when enter key is pressed. 2.