import React, { Component } from 'react';

class Alert extends Component {
  render() {
    return (
      <div>
        <div className="alert alert-warning alert-dismissible" role="alert">
          <button type="button" className="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">&times;</span></button>
          {this.props.text}
        </div>
      </div>
    );
  }
}

export default Alert;

import React, { Component } from 'react';

class Alert extends Component {

  constructor(props, context) {
    super(props, context);
    this.state = {
      isActive: true,
    }
  }

  hideAlert() {
    this.setState({
      isActive: false,
    });
  }

  render() {
    if (this.state.isActive) {
      return (
          <div
            className="alert alert-warning alert-dismissible"
            role="alert"
          >
            <button
              type="button"
              className="close"
              data-dismiss="alert"
              aria-label="Close"
              onClick={() => this.hideAlert()}
            >
              <span aria-hidden="true">&times;</span>
            </button>
            {this.props.text}
          </div>
      );
    }
    return <div/>
  }
}

export default Alert;