How to add multiple classes to a ReactJS Component?


I am new to ReactJS and JSX and I am having a little problem with the code below.

I am trying to add multiple classes to the className attribute on each li:

<li key={index} className={activeClass, data.class, "main-class"}></li>

My React component is:

var AccountMainMenu = React.createClass({
  getInitialState: function() {
    return { focused: 0 };

  clicked: function(index) {
    this.setState({ focused: index });

  render: function() {
    var self = this;
    var accountMenuData = [
        name: "My Account",
        icon: "icon-account"
        name: "Messages",
        icon: "icon-message"
        name: "Settings",
        icon: "icon-settings"
        name:"Help &amp; Support &nbsp; <span class='font-awesome icon-support'></span>(888) 664.6261",
        listClass:"no-mobile last help-support last"

    return (
      <div className="acc-header-wrapper clearfix">
        <ul className="acc-btns-container">
          {, index) {
            var activeClass = "";

            if (self.state.focused == index) {
              activeClass = "active";

            return (
                onClick={self.clicked.bind(self, index)}
                <a href="#" className={data.icon}>

ReactDOM.render(<AccountMainMenu />, document.getElementById("app-container"));


I use classnames when there is a fair amount of logic required for deciding the classes to (not) use. An overly simple example:

    var liClasses = classNames({
      'main-class': true,
      'activeClass': self.state.focused === index

    return (<li className={liClasses}>{}</li>);

That said, if you don’t want to include a dependency then there are better answers below.

Answered By – Jack

Answer Checked By – Pedro (AngularFixing Volunteer)

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