How to add custom html attributes in JSX
EDIT: Updated to reflect React 16
Custom attributes are supported natively in React 16. This means that adding a custom attribute to an element is now as simple as adding it to a render function, like so:
render() { return ( <div custom-attribute="some-value" /> );}For more:
https://reactjs.org/blog/2017/09/26/react-v16.0.html#support-for-custom-dom-attributes
https://facebook.github.io/react/blog/2017/09/08/dom-attributes-in-react-16.html
Previous answer (React 15 and earlier)
Custom attributes are currently not supported. See this open issue for more info: https://github.com/facebook/react/issues/140
As a workaround, you can do something like this in componentDidMount:
componentDidMount: function() { var element = ReactDOM.findDOMNode(this.refs.test); element.setAttribute('custom-attribute', 'some value');}See https://jsfiddle.net/peterjmag/kysymow0/ for a working example. (Inspired by syranide's suggestion in this comment.)
You can add an attribute using ES6 spread operator, e.g.
let myAttr = {'data-attr': 'value'}and in render method:
<MyComponent {...myAttr} />
Consider you want to pass a custom attribute named myAttr with value myValue, this will work:
<MyComponent data-myAttr={myValue} />