Developing with React and ES5, state on a Component is configured using the getInitialState() function:
var ButtonComponent = React.createClass({
getInitialState : function(){
return({
value1: this.props.value1,
value2: this.props.value2
});
},
...
});
If you’re moving from ES5 TO ES6 and creating React components using ES6 classes, if you try to follow the same approach you’ll see an error like this:
To set the initial state on an ES6 React class, you establish it in the constructor like this:
constructor(props) {
super(props);
this.state = {
value1 : this.props.value1,
value2 : this.props.value2,
};
}
