toJSON method

String toJSON()

Serialises the callback for Highcharts.

Implementation

String toJSON() {
  if (dart != null) {
    register();

    return ('function(...args){' +
        'highcharts_flutter.callback(\'$callbackKey\',[this, ...args]);' +
        (javaScript ?? '') +
        '}');
  }

  return 'function(){${javaScript ?? ''}}';
}