What's the difference between “super()” and “super(props)” in React when using es6 classes?

Question

When is it important to pass props to super(), and why?

class MyComponent extends React.Component {
  constructor(props) {
    supe         


        

Answer 1

Dan Abramov wrote an article on this topic:

Why Do We Write super(props)?

And the gist of it is that it's helpful to have a habit of passing it to avoid this scenario, that honestly, I don't see it unlikely to happen:

// Inside React
class Component {
  constructor(props) {
    this.props = props;
    // ...
  }
}

// Inside your code
class Button extends React.Component {
  constructor(props) {
    super(); //