On Tue, Oct 06, 2015 at 08:28:46PM +0000, Borislav Kosharov via Digitalmars-d-learn wrote:
> JSONValue root = parseJSON(text);
> if(root["key"].isNull == false) {
try
if("key" in root) {
	// it is there
} else {
	// it is not there
}
you can also do
if("key" !in root) {}