HelloIf I create spatialreference with the WKT:
var sr = new esri.SpatialReference('GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",
SPHEROID["WGS_1984",6378137.0,298.257223563]],
PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]]'
);
How can I know the WKID??sr.wkid is null.Thanks