Decodes the percent-encoding in encodedComponent, converting
pluses to spaces.
It will create a byte-list of the decoded characters, and then use
encoding to decode the byte-list to a String. The default encoding is
UTF-8.
Source
static String decodeQueryComponent(String encodedComponent,
{Encoding encoding: UTF8}) {
return _Uri._uriDecode(
encodedComponent, 0, encodedComponent.length, encoding, true);
}