UrlSearchParams([Object init ])

Source 

@DomName('URLSearchParams.URLSearchParams')
@DocsEditable()
factory UrlSearchParams([Object init]) {
  if (init != null) {
    return _blink.BlinkURLSearchParams.instance.constructorCallback_1_(init);
  }
  return _blink.BlinkURLSearchParams.instance.constructorCallback_0_();
}