Get "unexpected token" when I render a component - reactjs
The browser says there's an unexpected token when I try to render the App component. I used the correct syntax when calling the component, but I still get an error. If I called the component incorrectly then I would get error message before the browser would get to the end of the file because I call all the rest of the components the same way. This is a screenshot of the message I get from the browser in addition to my JavaScript and html file.
{/*how to create react comment*/}
const Header = () => {
return (
<header>
<h1>Scoreboard</h1>
<span className= "stats">Players: 1</span>
</header>
)
}
const Player = () => {
return (
<div className= "player">
<span className="player-name">Chris</span>
<Counter />
</div>
)
}
const Counter = () => {
return (
<div className="counter">
<button className="counter-action decrement"> - </button>
<span className="counter-score">Chris</span>
<button className="counter-action increment"> + </button>
</div>
)
}
const App = () => {
return (
<div className="scoreboard">
<Header />
{/*players list*/}
<Player />
</div>
)
}
ReactDOM.render(
{/*the element we want*/}
<App />,
{/*the element we want to append on to*/}
document.getElementById('root')
)
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Scoreboard</title>
<link rel="stylesheet" href="./app.css" />
</head>
<!-- have to go to a local server http://localhost:8000/ to view your work.
this will have the port 8000, if you want another project on a local server do "python -m SimpleHTTPServer 7800" that will direct it
to port 7800. have to keep command prompt open to use the local server.takes a minute to load -->
<body>
<div id="root"></div>
<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#6/babel.min.js"></script>
<script type="text/babel" src="./app.js"></script>
</body>
</html>
Remove your comments from ReactDOM.render()
ReactDOM.render(<App />, document.getElementById('root'))
don't pass any comments inside ReactDOM.render().
syntax
ReactDOM.render(reactElement, domContainerNode)
for your reference please refer to Reactjs documentation
Related
not being able to display button in reactJS
const root = ReactDOM.createRoot(document.getElementById('root'));
const element = <h1>Hello, 1234world</h1>;
root.render(element);
const root2 = ReactDOM.createRoot(document.getElementById('tworoot'));
const element2 = <h1>Hello, 5678world</h1>;
root2.render(element2);
function MyButton() {
return (
<button>
I'm a button
</button>
);
}
export default function MyApp() {
return (
<div>
<h1>Welcome to my app</h1>
<MyButton />
</div>
);
}
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>Add React in One Minute</title>
</head>
<body>
<h2>Add React in One Minute</h2>
<p>This page demonstrates using React with no build tooling.</p>
<p>React is loaded as a script tag.</p>
<!-- We will put our React component inside this div. -->
<div id="root"></div>
<div id="tworoot"></div>
<!-- Load React. -->
<!-- Note: when deploying, replace "development.js" with "production.min.js". -->
<script src="https://unpkg.com/react#18/umd/react.development.js" crossorigin></script>
<script src="https://unpkg.com/react-dom#18/umd/react-dom.development.js" crossorigin></script>
<!-- Load your React component. -->
<script src="lik.js"></script>
</body>
</html>
Upon rendering my html page,I am getting console log error as Uncaught SyntaxError: Unexpected token 'export' and my Button is not being displayed.button.please advise me as I think I am nt getting the concepts right
In order to render the Button, you have to render the component referencing it, in this case, MyApp.
const root = ReactDOM.createRoot(document.getElementById('root'));
const element = <h1>Hello, 1234world</h1>;
root.render(element);
const root2 = ReactDOM.createRoot(document.getElementById('tworoot'));
const element2 = <MyApp />;
root2.render(element2);
add react to a website : how import external node module?
from this ressource https://reactjs.org/docs/add-react-to-a-website.html I have integrate into my static website a basic component
<body>
<div id="like_button_container"></div>
<!-- Load React. -->
<!-- Note: when deploying, replace "development.js" with "production.min.js". -->
<script src="https://unpkg.com/react#16/umd/react.development.js" crossorigin></script>
<script src="https://unpkg.com/react-dom#16/umd/react-dom.development.js" crossorigin></script>
<script src="https://unpkg.com/react-content-loader#3.4.1/dist/react-content-loader.min.js" crossorigin></script>
<!-- Load our React component. -->
<script src="like_button.js"></script>
</body>
</html>
like_button.js :
'use strict';
class LikeButton extends React.Component {
constructor(props) {
super(props);
this.state = { liked: false };
}
render() {
if (this.state.liked) {
return 'You liked this.';
}
return (
<div>
<button onClick={() => this.setState({ liked: true }) }>
Like
</button>
<Facebook /> ???????????
</div>
);
}
}
let domContainer = document.querySelector('#like_button_container');
ReactDOM.render(<LikeButton />, domContainer);
How to use in this component an external module like https://www.npmjs.com/package/react-content-loader ?
I tried to add script https://unpkg.com/react-content-loader#3.4.1/dist/react-content-loader.min.js into html page with import satement in my component but I have an error "Uncaught ReferenceError: Facebook is not defined"
I never tried the code in Add React to a Website chapter of the React documentation. It was a good time to tinker with it.
There are more than one potential problem with your attached code. You do not load Babel in your index.html. At least in the question. So you could not use jsx syntax in the like_button.js.
The second one is that you could not use import here. You have to find what is the namespace of the package. I logged out the window object, checked that and it is ContentLoader.
The rest is easy I created a standalone index.html with babel:
https://codesandbox.io/s/w27pjmq355
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Hello React!</title>
<script src="https://unpkg.com/react#16/umd/react.development.js"></script>
<script src="https://unpkg.com/react-dom#16/umd/react-dom.development.js"></script>
<script
src="https://unpkg.com/react-content-loader#3.4.1/dist/react-content-loader.min.js"
crossorigin
></script>
<script src="https://unpkg.com/babel-standalone#6.26.0/babel.js"></script>
</head>
<body>
<div id="root"></div>
<script type="text/babel">
console.log('window', window);
class App extends React.Component {
render() {
return (
<div>
<h1>Hello world!</h1>
<ContentLoader.Facebook />
</div>
);
}
}
ReactDOM.render(<App />, document.getElementById('root'));
</script>
</body>
</html>
I think you could try out React this way, but Babel usage is not recommended like this in production. I strongly recommend to install node and use create-react-app. This way you can use the whole toolchain in no time.
Or event create a new React sandbox on CodeSandbox.io
Render reactjs component not work localhost
Please,can somebody help to solve my problem with react.I am trying to render Hello World in div named header,but is shows nothing. I use localhost with server.js
ReactDOM.render(
<h1>Hello, world!</h1>,
document.getElementById('root')
);
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<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://cdnjs.cloudflare.com/ajax/libs/babel-core/6.1.19/browser.min.js"></script>
</head>
<body>
<div id="root"></div>
<script type="text/babel" src="main.js"></script>
</body>
</html>
Link on image:
http://prntscr.com/j2r5wr
errors:
http://prntscr.com/j2rd5s
Mistake in dom render at first:
ReactDOM.render(
<Helloworld />,
document.getElementById('header')
);
3 ways of creating component. Dont need to use React.createClass(as in picture)
simple functional component that directly returns some jsx
const HelloWord = () => (
Hello word!!
)
normal funtional component
const HelloWord = () => {
return (
Hello word!!
)
}
Class component
class HelloWord extends React.Component {
render() {
return (
Hello word!!
)
}
}
and then use it like
render(<HelloWord />, document.querySelector('#root'));
Wow slider with react.js is not working
I have created a page with fullpage.js and in one of the sections I've integrated wow slider. Same thing is working perfectly in html page but not when integrated in react.js. Getting following error.
Uncaught TypeError: Cannot read property 'replace' of undefined
at N
Script for wow slider
function ws_glass_parallax(d,l,m){var f=jQuery;var i=f(this);var j=d.parallax||0.25;var k=f("<div>").css({position:"absolute",display:"none",top:0,left:0,width:"100%",height:"100%",overflow:"hidden"}).addClass("ws_effect ws_glass_parallax").appendTo(m);var h=!d.noCanvas&&!window.opera&&!!document.createElement("canvas").getContext;if(h){try{document.createElement("canvas").getContext("2d").getImageData(0,0,1,1)}catch(q){h=0}}function t(e){return Math.round(e*1000)/1000}var u=f("<div>").css({position:"absolute",left:0,top:0,overflow:"hidden",width:"100%",height:"100%",transform:"translate3d(0,0,0)",zIndex:1}).appendTo(k);var s=u.clone().appendTo(k);var r=u.clone().css({width:"20%"}).appendTo(k);var c;var p=u.clone().appendTo(k).css({zIndex:0});this.go=function(C,A,x){var e=f(l.get(A));e={position:"absolute",width:e.width(),height:e.height(),marginTop:e.css("marginTop"),marginLeft:e.css("marginLeft")};x=x?1:-1;var E=f(l.get(A)).clone().css(e).appendTo(u);var z=f(l.get(C)).clone().css(e).appendTo(s);var v=f(l.get(C)).clone().css(e).appendTo(r);if(x==-1){r.css({left:"auto",right:0});v.css({left:"auto",right:0})}else{r.css({left:0,right:"auto"});v.css({left:0,right:"auto"})}var D=(m.width()||d.width)*1.3;var B=m.height()||d.height;var y;if(h){if(!c){c=f("<canvas>").css({position:"absolute",left:0,top:0}).attr({width:e.width,height:e.height}).appendTo(p)}c.css(e).attr({width:e.width,height:e.height});y=o(f(l.get(C)),e,10,c.get(0))}if(!h||!y){h=0}wowAnimate(function(G){G=f.easing.swing(G);var L=t(x*G*D),F=t(x*(-D+G*D-(1-G)*D*0.2)),J=t(x*(-D*1.4+G*(D*1.4+D/1.3))),w=t(-x*D*j*G),H=t(x*D*j*(1-G)),I=t(-x*D*(j+0.2)*G),K=t(x*(-D*0.2+G*D*0.4));if(d.support.transform){u.css("transform","translate3d("+L+"px,0,0)");E.css("transform","translate3d("+w+"px,0,0)");s.css("transform","translate3d("+F+"px,0,0)");z.css("transform","translate3d("+H+"px,0,0)");r.css("transform","translate3d("+J+"px,0,0)");v.css("transform","scale(1.6) translate3d("+I+"px,0,0)");p.css("transform","translate3d("+K+"px,0,0)")}else{u.css("left",L);E.css("margin-left",w);s.css("left",F);z.css("margin-left",H);r.css("left",J);v.css("margin-left",I);p.css("left",K)}},0,1,d.duration,function(){k.hide();E.remove();z.remove();v.remove();i.trigger("effectEnd")})};function o(C,A,B,v){var F=(parseInt(C.parent().css("z-index"))||0)+1;if(h){var I=v.getContext("2d");I.drawImage(C.get(0),0,0,A.width,A.height);if(!a(I,0,0,v.width,v.height,B)){return 0}return f(v)}var J=f("<div></div>").css({position:"absolute","z-index":F,left:0,top:0}).css(A).appendTo(v);var H=(Math.sqrt(5)+1)/2;var w=1-H/2;for(var z=0;w*z<B;z++){var D=Math.PI*H*z;var e=(w*z+1);var G=e*Math.cos(D);var E=e*Math.sin(D);f(document.createElement("img")).attr("src",C.attr("src")).css({opacity:1/(z/1.8+1),position:"absolute","z-index":F,left:Math.round(G)+"px",top:Math.round(E)+"px",width:"100%",height:"100%"}).appendTo(J)}return J}var g=[512,512,456,512,328,456,335,512,405,328,271,456,388,335,292,512,454,405,364,328,298,271,496,456,420,388,360,335,312,292,273,512,482,454,428,405,383,364,345,328,312,298,284,271,259,496,475,456,437,420,404,388,374,360,347,335,323,312,302,292,282,273,265,512,497,482,468,454,441,428,417,405,394,383,373,364,354,345,337,328,320,312,305,298,291,284,278,271,265,259,507,496,485,475,465,456,446,437,428,420,412,404,396,388,381,374,367,360,354,347,341,335,329,323,318,312,307,302,297,292,287,282,278,273,269,265,261,512,505,497,489,482,475,468,461,454,447,441,435,428,422,417,411,405,399,394,389,383,378,373,368,364,359,354,350,345,341,337,332,328,324,320,316,312,309,305,301,298,294,291,287,284,281,278,274,271,268,265,262,259,257,507,501,496,491,485,480,475,470,465,460,456,451,446,442,437,433,428,424,420,416,412,408,404,400,396,392,388,385,381,377,374,370,367,363,360,357,354,350,347,344,341,338,335,332,329,326,323,320,318,315,312,310,307,304,302,299,297,294,292,289,287,285,282,280,278,275,273,271,269,267,265,263,261,259];var n=[9,11,12,13,13,14,14,15,15,15,15,16,16,16,16,17,17,17,17,17,17,17,18,18,18,18,18,18,18,18,18,19,19,19,19,19,19,19,19,19,19,19,19,19,19,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,21,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,22,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24,24];function a(am,U,S,v,w,ad){if(isNaN(ad)||ad<1){return}ad|=0;var ah;try{ah=am.getImageData(U,S,v,w)}catch(al){console.log("error:unable to access image data: "+al);return false}var C=ah.data;var ab,aa,aj,ag,J,M,G,A,B,R,H,T,P,X,ac,K,F,L,N,W;var ak=ad+ad+1;var Y=v<<2;var I=v-1;var af=w-1;var E=ad+1;var ae=E*(E+1)/2;var V=new b();var Q=V;for(aj=1;aj<ak;aj++){Q=Q.next=new b();if(aj==E){var D=Q}}Q.next=V;var ai=null;var Z=null;G=M=0;var O=g[ad];var z=n[ad];for(aa=0;aa<w;aa++){X=ac=K=A=B=R=0;H=E*(F=C[M]);T=E*(L=C[M+1]);P=E*(N=C[M+2]);A+=ae*F;B+=ae*L;R+=ae*N;Q=V;for(aj=0;aj<E;aj++){Q.r=F;Q.g=L;Q.b=N;Q=Q.next}for(aj=1;aj<E;aj++){ag=M+((I<aj?I:aj)<<2);A+=(Q.r=(F=C[ag]))*(W=E-aj);B+=(Q.g=(L=C[ag+1]))*W;R+=(Q.b=(N=C[ag+2]))*W;X+=F;ac+=L;K+=N;Q=Q.next}ai=V;Z=D;for(ab=0;ab<v;ab++){C[M]=(A*O)>>z;C[M+1]=(B*O)>>z;C[M+2]=(R*O)>>z;A-=H;B-=T;R-=P;H-=ai.r;T-=ai.g;P-=ai.b;ag=(G+((ag=ab+ad+1)<I?ag:I))<<2;X+=(ai.r=C[ag]);ac+=(ai.g=C[ag+1]);K+=(ai.b=C[ag+2]);A+=X;B+=ac;R+=K;ai=ai.next;H+=(F=Z.r);T+=(L=Z.g);P+=(N=Z.b);X-=F;ac-=L;K-=N;Z=Z.next;M+=4}G+=v}for(ab=0;ab<v;ab++){ac=K=X=B=R=A=0;M=ab<<2;H=E*(F=C[M]);T=E*(L=C[M+1]);P=E*(N=C[M+2]);A+=ae*F;B+=ae*L;R+=ae*N;Q=V;for(aj=0;aj<E;aj++){Q.r=F;Q.g=L;Q.b=N;Q=Q.next}J=v;for(aj=1;aj<=ad;aj++){M=(J+ab)<<2;A+=(Q.r=(F=C[M]))*(W=E-aj);B+=(Q.g=(L=C[M+1]))*W;R+=(Q.b=(N=C[M+2]))*W;X+=F;ac+=L;K+=N;Q=Q.next;if(aj<af){J+=v}}M=ab;ai=V;Z=D;for(aa=0;aa<w;aa++){ag=M<<2;C[ag]=(A*O)>>z;C[ag+1]=(B*O)>>z;C[ag+2]=(R*O)>>z;A-=H;B-=T;R-=P;H-=ai.r;T-=ai.g;P-=ai.b;ag=(ab+(((ag=aa+E)<af?ag:af)*v))<<2;A+=(X+=(ai.r=C[ag]));B+=(ac+=(ai.g=C[ag+1]));R+=(K+=(ai.b=C[ag+2]));ai=ai.next;H+=(F=Z.r);T+=(L=Z.g);P+=(N=Z.b);X-=F;ac-=L;K-=N;Z=Z.next;M+=v}}am.putImageData(ah,U,S);return true}function b(){this.r=0;this.g=0;this.b=0;this.a=0;this.next=null}};
jQuery("#wowslider-container1").wowSlider({effect:"glass_parallax",prev:"",next:"",duration:20*100,delay:20*100,width:640,height:360,autoPlay:false,autoPlayVideo:false,playPause:false,stopOnHover:false,loop:false,bullets:1,caption:true,captionEffect:"traces",controls:false,controlsThumb:false,responsive:2,fullScreen:false,gestures:2,onBeforeStep:0,images:0});
Created app using create-react-app
App.js code
import React, { Component } from 'react';
import './App.css';
class App extends Component {
render() {
return (
<div className="App">
<ul id="menu">
<li data-menuanchor="firstPage">firstPage</li>
<li data-menuanchor="secondPage">secondPage</li>
<li data-menuanchor="3rdPage">3rdPage</li>
<li data-menuanchor="4thpage">4thpage</li>
<li data-menuanchor="5thpage">5thpage</li>
</ul>
<div id="fullpage">
<div className="section " id="section0">
<div className="intro">
<p>Your Virtual Assistant</p>
<p>Free your time for the things that matter to you.</p>
<p>be part of the first release, <br/> duw out shortly</p>
Sign up today
</div>
</div>
<div className="section" id="section1">
<div className="intro">
<h1>No limitations!</h1>
<p>Content is a priority. Even if it is so large :)</p>
</div>
</div>
<div className="section" id="section2">
<div id="wowslider-container1">
<div className="ws_images"><ul>
<li><img src="images/background_1.jpg" alt="Background_1" title="Background_1" id="wows1_0"/></li>
<li><img src="images/sample_1.jpg" alt="Sample_1" title="Sample_1" id="wows1_1"/></li>
<li><img src="images/sample_2.jpg" alt="javascript carousel" title="Sample_2" id="wows1_2"/></li>
<li><img src="images/sample_3.jpg" alt="Sample_3" title="Sample_3" id="wows1_3"/></li>
</ul></div>
<div className="ws_bullets"><div>
<span>1</span>
<span>2</span>
<span>3</span>
<span>4</span>
</div></div><div className="ws_script" >css image gallery by WOWSlider.com v8.8m</div>
<div className="ws_shadow"></div>
</div>
</div>
<div className="section" id="section3">
<div className="intro">
<h1>No limitations!</h1>
<p>Content is a priority. Even if it is so large :)</p>
</div>
</div>
<div className="section" id="section4">
<div className="intro">
<h1>No limitations!</h1>
<p>Content is a priority. Even if it is so large :)</p>
</div>
</div>
</div>
</div>
);
}
}
export default App;
index.html page code
<!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">
<!--
manifest.json provides metadata used when your web app is added to the
homescreen on Android. See https://developers.google.com/web/fundamentals/engage-and-retain/web-app-manifest/
-->
<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/fullPage.js/2.8.1/jquery.fullPage.min.css">
<link rel="stylesheet" type="text/css" href="css/examples.css" />
<link rel="stylesheet" type="text/css" href="css/style.css" />
<title>React App</title>
</head>
<body>
<noscript>
You need to enable JavaScript to run this app.
</noscript>
<div id="root"></div>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.9.1/jquery-ui.min.js"></script>
<script type="text/javascript" src="js/scrolloverflow.js"></script>
<script type="text/javascript" src="js/jquery.fullPage.js"></script>
<script type="text/javascript" src="js/examples.js"></script>
<script type="text/javascript" src="js/wowslider.js"></script>
<script type="text/javascript" src="js/script.js"></script><script type="text/javascript">
$(document).ready(function() {
$('#fullpage').fullpage({
// anchors: ['firstPage', 'secondPage', '3rdPage', '4thpage', '5thpage'],
sectionsColor: ['#4A6FB1', '#939FAA', '#323539','#4A6FB1','#939FAA'],
// scrollOverflow: true
// sectionsColor: ['', '#939FAA', '#fff','#fff','','#fff','',''],
anchors:
['firstPage', 'secondPage', '3rdPage', '4thpage', '5thpage','6thpage','7thpage','8thpage'],
menu: '#menu',
css3: true,
scrollingSpeed: 1000,
scrollOverflow: true,
fixedElements: '10',
// paddingTop: '3em',
lockAnchors: true,
// scrollBar:true,
onLeave: function(){
}
});
});
</script>
</body>
</html>
If you want to keep the revision as little as possible, try to prefix the window to external library (use as global variable)
jQuery("#wowslider-container1").wowSlider(...)
to
window.jQuery("#wowslider-container1").wowSlider(...)
Here is explanation on CRA doc.
The part I could not understand is that why you need the function
function ws_glass_parallax(d,l,m){...}
in your script.js.
But I cannot make sure it would work as expected cause that I think this is not the anticipated way to develop in react.
My suggestion, including the fullpage utilization you deployed in index.html should just move to componentDidMount() which could roughly seem as the same place as $(document).ready(function() {})
so the whole picture should be:
App.js
import React, { Component } from 'react';
import './App.css';
class App extends Component {
componentDidMount() {
window.JQuery(this.refs.fullpageEle).fullpage({...});
window.JQuery(this.refs.wow).wowSlider({...});
}
render() {
return (
<div className="App">
<ul id="menu"> ... </ul>
<div id="fullpage" ref="fullpage" >
<div className="section" id="section0"> ... </div>
<div className="section" id="section1"> ... </div>
<div className="section" id="section2">
<div id="wowslider-container1" ref="wow">
</div>
</div>
<div className="section" id="section3"> ... </div>
<div className="section" id="section4"> ... </div>
</div>
</div>);
}
}
export default App;
Something may be new to you is ref which I add in your target element and we refer the element by it in componenetDidMount(), here is the description on official doc.
And leave index.html only including external source but not JS code.
Simple reactjs tutorial code not working and no errors in dev tools
I'm following a simple ReactJS tutorial on udemy and for some reason my code which seems to be the same line for line is not working, nor am I getting any errors in the dev tools in chrome.
Here is my code, but I can't seem to figure out why it's not working. I'm using Brackets as my IDE and am also using chrome.
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<script src="https://unpkg.com/react#0.14.7/dist/react.js"></script>
<script src="https://unpkg.com/react-dom#0.14.7/dist/react-dom.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/babel-core/5.8.20/browser.js"></script>
</head>
<body>
<div id="app">
</div>
<script type="text/babel">
var secondComp2 = React.createClass({
render: function () {
return (
<div>
<h1>{this.props.name}</h1>
</div>
)
}
});
ReactDOM.render(
<secondComp2 name="hello world" />,
document.getElementById('app')
);
</script>
</body>
</html>
React components are always defined in PascalCase. This will solve your problem.
<script type="text/babel">
var SecondComp2 = React.createClass({
render: function () {
return (
<div>
<h1>{this.props.name}</h1>
</div>
);
}
});
ReactDOM.render(
<SecondComp2 name="hello world" />,
document.getElementById('app')
);
</script>
Its a rule that all React components must starts with a upper case letter, because small letters are treated as HTML elements, So use this: SecondComp2 instead of secondComp2. Check the working fiddle: https://jsfiddle.net/5nvd3o6t/