# babel-plugin-transform-react-display-name > Add displayName to `createReactClass` (and `React.createClass`) calls ## Example **In** ```js var foo = React.createClass({}); // React <= 15 var bar = createReactClass({}); // React 16+ ``` **Out** ```js var foo = React.createClass({ displayName: "foo" }); // React <= 15 var bar = createReactClass({ displayName: "bar" }); // React 16+ ``` ## Installation ```sh npm install --save-dev babel-plugin-transform-react-display-name ``` ## Usage ### Via `.babelrc` (Recommended) **.babelrc** ```json { "plugins": ["transform-react-display-name"] } ``` ### Via CLI ```sh babel --plugins transform-react-display-name script.js ``` ### Via Node API ```javascript require("babel-core").transform("code", { plugins: ["transform-react-display-name"] }); ```