Cannot read property ‘bind’ of undefined. React.js
https://facebook.github.io/react/docs/reusable-components.html#no-autobinding No Autobinding Methods follow the same semantics as regular ES6 classes, meaning that they don’t automatically bind this to the instance. You’ll have to explicitly use .bind(this) or arrow functions =>: You can use bind() to preserve this Or you can use arrow functions We recommend that you bind your event handlers in the constructor so they are … Read more