alexedwards

func TestChain(t *testing.T) {
	used := ""

	mw1 := func(next http.Handler) http.Handler {
		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
			used += "1"
			next.ServeHTTP(w, r)
		})
	}

hartzis

// https://codepen.io/hartzis/pen/VvNGZP
class ImageUpload extends Component {
  constructor(props) {
    super(props);
    this.state = {
      file: '',
      imagePreviewUrl: ''
    };
    this._handleImageChange = this._handleImageChange.bind(this);
    this._handleSubmit = this._handleSubmit.bind(this);