Subj : undefined values To : mozilla-jseng@mozilla.org From : matthias@atip.de (Matthias Thiel) Date : Mon Aug 04 2003 03:51 pm Hi, is there a possibility to check, whether a variable is defined or not (using SpiderMonkey) ? I tried out scripts like "x==undefined", but I got an error instead of true or false. With Rhino, such scripts are working and returning true or false. Is it a feature of Rhino ? thanks in advance, Matthias Thiel -- Matthias Thiel ATIP GmbH Software Developer Daimlerstr. 32 D-60314 Frankfurt/Main phone: +49 69 941963 220 fax: +49 69 941963 188 web: www.atip.de .