I am new to ReactJS. So I have a straight forward question.
I have used materialize cdn, included in index.html. But when I try to initialize it in my component it says 'M' not defined. Where should I initialize the same.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta
name="viewport"
content="width=device-width, initial-scale=1, shrink-to-fit=no"
/>
<meta name="theme-color" content="#000000" />
<link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
<link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico" />
<link
rel="stylesheet"
href="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/css/materialize.min.css"
/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0/js/materialize.min.js"></script>
<title>React App</title>
</head>
<body>
<noscript> You need to enable JavaScript to run this app. </noscript>
<div id="root"></div>
</body>
</html>
My component looks something like this
import React from "react";
class Dashboard extends React.Component {
componentDidMount() {
document.addEventListener("DOMContentLoaded", function() {
var elems = document.querySelectorAll(".carousel");
var instances = M.Carousel.init(elems, options);
});
}
}
export default Dashboard;
CodeSandbox link: - https://codesandbox.io/s/40jvz6j590
Well, if you are using it, you need to import it :D
import React from "react";
import {Carousel} from "react-materialize";
And here is how to use it https://react-materialize.github.io/#/carousel
Related
Getting an error with React portal in the production build but none in development. I'm getting error #200 "target container is not a DOM element". I have put my code below. Please ignore the CSS part.
import ReactDOM from 'react-dom'
import React from 'react'
const Modal_Styles={
backgroundColor:'#FFF',
position:'fixed',
top:'50%',
left:'50%',
right:'10%',
bottom:'10%',
padding:50,
textAlign:'justify',
transform:'translate(-50%,-50%)',
borderRadius:'12px',
zIndex:1000
}
const Overlay_Styles={
position:'fixed',
left:0,
top:0,
right:0,
bottom:0,
backgroundColor:'rgba(0,0,0,0.3)',
zIndex:1000,
}
export default function Modal({open,children,onClose}) {
if(!open){return null}
return ReactDOM.createPortal(
<>
<div style={Overlay_Styles}>
<div style={Modal_Styles}>
{children}
<button className='mbutton' onClick={onClose}>x</button>
</div>
</div>
</>,
document.getElementById('portal')
)
}
The index.html file is:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="theme-color" content="#000000" />
<meta
name="description"
content="C"
/>
<title>React App</title>
</head>
<body>
<noscript>You need to enable JavaScript to run this app.</noscript>
<div id="root"></div>
<div id="portal"></div>
</body>
</html>
Any suggestions?
The names for both divs root and portal are correctly written in the index.js and modal.js.
I got this error
Uncaught Error: Target container is not a DOM element.
when I want to create a header for my web page and the problem that I'm following a YouTube video to learn react, and I got this issues and in the YouTube video he didn't have the same problem as me
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<script crossorigin src="https://unpkg.com/react#16/umd/react.development.js"></script>
<script crossorigin src="https://unpkg.com/react-dom#16/umd/react-dom.development.js"></script>
<script src="https://unpkg.com/#babel/standalone/babel.min.js"></script>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Lato">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Montserrat">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<style>
body,h1,h2,h3,h4,h5,h6 {font-family: "Lato", sans-serif}
.w3-bar,h1,button {font-family: "Montserrat", sans-serif}
.fa-anchor,.fa-coffee {font-size:200px}
</style>
</head>
<body>
<div className="Home"></div>
<script type="text/babel">
class Header extends React.Component {
render(){
return(
<div className="w3-top">
<div className="w3-bar w3-red w3-card w3-left-align w3-large">
<a className="w3-bar-item w3-button w3-hide-medium w3-hide-large w3-right w3-padding-large w3-hover-white w3-large w3-red" href="javascript:void(0);" onclick="myFunction()" title="Toggle Navigation Menu"><i className="fa fa-bars"></i></a>
Home
Link 1
Link 2
Link 3
Link 4
</div>
</div>
)
}
}
class Home extends React.Component {
render(){
return(
<header />
)
}
}
ReactDOM.render(<Home/>,document.getElementById("app"))
</script>
</body>
</html>
In reactDOM.render() you are rendering your app to document.getElementById("app") which does not exist on your page. You need to add an element with the id of app to your page so the react app can render to a valid element.
So somewhere in the body of your page add the element <div id="app"></div>
or if you are meaning to render your app to the Home element you need to change the function to say something like:
ReactDOM.render(<Home/>,document.querySelector(".Home")).
and then change your element to say something like:
<div class="Home"></div>
You only need to use className to specify a class inside of a react element. So <div className="Home"></div> is not valid html it should be <div class="Home"></div>. But inside a react element you would use <div className="your-class"></div>.
I've started to learn React lately and today to just memorize what i've learnt i decided to create a react component that contains a simple heading tag but i can't figure out why it won't be displayed in the browser here's my code
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<div id="app">
</div>
<script crossorigin src="https://unpkg.com/react#18/umd/react.development.js"></script>
<script crossorigin src="https://unpkg.com/react-dom#18/umd/react-dom.development.js"></script>
<script src="include-component.js" ></script>
</body>
</html>
and this is my react component which resides in file named include-component.js :
import React from "react";
import ReactDOM from "react-dom";
function IncludeComponent() {
return(
<TestComponent name="Hello Wolrd"/>
);
}
function TestComponent(props) {
return(
<h1>{props.name}</h1>
);
}
const app= document.getElementById('app');
ReactDOM.render(<IncludeComponent/>,app);
can someone tell me why my component won't render ?
You are using a confusing mixture of non-compiled code and compiled code. Did you checked your console? You surely have errors guiding you...
This is for when you don't have a compiler and React and ReactDOM will be available globally:
<script crossorigin src="https://unpkg.com/react#18/umd/react.development.js"></script>
<script crossorigin src="https://unpkg.com/react-dom#18/umd/react-dom.development.js"></script>
I don't recommend you try this approach. It is sub optimal and none of the resources you will see online are using it.
Then you do this:
<script src="include-component.js"></script>
This will already cause an exception since you're using import statements inside this JS file, but you haven't said that it type="module". Normal JS files can't use import statements.
Finally you can't import React and ReactDOM like that anyway, since you imported the browser versions which just have global variables.
Instead just start a project with Create React App:
npx create-react-app my-app
cd my-app
yarn start
And start experimenting in that instead.
For completeness you would need to transform with babel:
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<div id="app">
</div>
<script src="https://unpkg.com/react/umd/react.development.js"></script>
<script src="https://unpkg.com/react-dom/umd/react-dom.development.js"></script>
<script src="https://unpkg.com/#babel/standalone/babel.js"></script>
<script type="text/babel">
function IncludeComponent() {
return(
<TestComponent name="Hello Wolrd"/>
);
}
function TestComponent(props) {
return(
<h1>{props.name}</h1>
);
}
const container = document.getElementById('app');
const root = ReactDOM.createRoot(app);
root.render(<IncludeComponent/>);
</script>
</body>
</html>
You must import the test component!!
import TestComponent from './TestComponent';
function App() {
return (
<div className="App">
<TestComponent name='hello world' />
</div>
);
}
export default App;
I am sure this has been asked before but I haven't found the answer when browsing here or google.
I am following this guide to do a react-router-dom based menu in Laravel -> https://laravel-reactjs.com/react-sidebar-navigation-menu-tutorial-beginner-react-js-project-using-hooks-router/
I understand the guide, and are also aware of that Switch has been replaced with routes in newer version of react-router.
My question is how render the navigation in my blade file. I have tried multiple ways of render, ReactDom.render and appending to elements.. I can't get it to work.
My code is
routepath.js
import ReactDom from 'react';
import { BrowserRouter as Router, Route, Routes } from "react-router-dom";
import Navbar from "./components/Navbar";
function App() {
return(
<Router>
<Navbar />
<routes>
<route path='/' />
</routes>
</Router>
);
}
export default App;
navbar.js
import * as FaIcons from "react-icons/fa";
import { Link } from 'react-router-dom';
function Navbar() {
return (
<div className="navbar">
<link to="#" className="menu-bars">
<FaIcons.FaBars />
Menu
</link>
</div>
)
}
export default Navbar
app.js (to compile)
require("./components/main"); //FullCalendar
require("./RoutePath");
app.blade.php
<html lang="{{ app()->getLocale() }}">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- CSRF Token -->
<meta name="csrf-token" content="{{ csrf_token() }}">
<title>Tasksman</title>
<!-- Styles -->
<link href="{{ asset('css/app.css') }}" rel="stylesheet">
</head>
<body>
<div id="app"></div>
<div id="menu"></div>
<script src="{{ asset('js/app.js') }}"></script>
</body>
</html>
My file structure is
- js
- Components
- Navbar.js
- pages
- Home.js
- Products.js
- Reports.js
- app.js
- RoutePath.js
- views
- app.blade.php
Try this code
Route::view('/{path?}', 'app')
->where('path', '.*')
->name('react');
in view file
<html lang="{{ app()->getLocale() }}">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- CSRF Token -->
<meta name="csrf-token" content="{{ csrf_token() }}">
<title>Tasksman</title>
<!-- Styles -->
<link href="{{ asset('css/app.css') }}" rel="stylesheet">
</head>
<body>
<div id="app"></div>
<script src="{{ asset('js/app.js') }}"></script>
</body>
</html>
in mix file
mix.js('resources/js/index.js', 'public/js')
.react()
.less('resources/sass/app.scss', 'public/css');
This is my first time using reactjs. I installed react and react-dom using npm.
This is my main.js file:
import React from 'react'
import ReactDOM from 'react-dom'
ReactDOM.render(<h1> hello world</h1>,document.getElementById("node"));
This is my index.html file:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Page Title</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" media="screen" href="main.css">
</head>
<body>
<div id="node"></div>
<script src="main.js"></script>
</body>
</html>
Both files are in the same directory, but react isn't changing the VIEW.
Does anyone have any advice for me on how to proceed?
Try running
create-react-app APP_NAME
Hope this works