leova

class ExampleComponent extends React.Component {
  state = {
    isReady: false,
  };
  
  hanldeOnLoad = () => {
    this.setState({ isReady: true });
  };
  
  render() {
    const { src } = this.props;
    const { isReady } = this.state;
 
    const className = isReady ? '' : 'some-class';
 
    return (
      <div className={className}>
        <img onLoad={this.hanldeOnLoad} src={src} />
      </div>
    );
  }
}

var BXForm = Object.create(Object);
BXForm.prototype.btnClick = function() {
  console.log('btnClick called');
}

BXForm.prototype.init = function() {
  this.btnClick();
  console.log(this, 'init called');
}

BXForm.init();