Mark A Mark A - 1 month ago 31
React JSX Question

Single React Component rendering with Babel Standalone with only index.html and Component

Noob with React here. I am playing around with React. I have a simple component to render inside my component.js. It is included in my index.html file. I included the scripts for

React
,
ReactDOM
, and
babel
in the head. I just want to see that one div render properly. I am not using Node yet, just a exercise with React and Babel (using babel-standalone). I am running the file with a simple http-server. I am getting an error with the React Chrome extension:
Waiting for roots to load...to reload inspector click here
.

index.html

<!DOCTYPE html>
<html>
<head>
<!-- React -->
<script src="https://unpkg.com/react@15/dist/react.min.js"></script>
<!-- React DOM -->
<script src="https://unpkg.com/react-dom@15/dist/react-dom.min.js"></script>
<!-- babel core-->
<script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.4.4/babel.min.js"></script>
</head>
<body>
<div id="machine-box"></div>
<script type="text/babel" src="components.js"></script>
</body>
</html>`


components.js

class MachineBox extends React.Component {
render(){
return ( <div>Hello From React </div> );
}
}

let target = document.getElementById('machine-box');

ReactDOM.render(
<MachineBox />, target
)

Answer

Your code is fine, you are using a really old version of babel-standalone though.

// this
<script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.4.4/babel.min.js"></script>

// should be this
<script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.17.0/babel.min.js"></script>

and

<script type="text/babel" src="components.js"></script>

// should be
<script type="text/babel" src="components.js" data-presets="es2015,react"></script>