lib/command/set.js
function sismember(key, member, req) {
  var val = this.getKey(key, req);
  if(val === undefined) return 0;
  return val.sismember(member);
}
function sismember(key, member, req) {
  var val = this.getKey(key, req);
  if(val === undefined) return 0;
  return val.sismember(member);
}
function sismember ( key , member , req ) { var val = this . getKey ( key , req ) ; if ( val === undefined ) return 0 ; return val . sismember ( member ) ; }
Returns if member is a member of the set stored at key.
Returns if member is a member of the set stored at key .