125         vfs: 'kvvfs', filename: isWorkerThread || (()=>'local')  property
128         vfs: 'kvvfs', filename: isWorkerThread || (()=>'session')  property
132     let fn = opt.filename, vfsName = opt.vfs, flagsStr = opt.flags;
143       fn = fnJs = vfsCheck.filename(fnJs);
177     this.filename = fnJs;
201   dbCtorHelper.normalizeArgs = function(filename=':memory:',flags = 'c',vfs = null){  argument
208       if(undefined===arg.filename) arg.filename = ':memory:';
210       arg.filename = filename;
524         delete this.filename;
1771         filename: storageName,  property
1786       return jdb.clearStorage(affirmDbOpen(this).filename);
1795       return jdb.storageSize(affirmDbOpen(this).filename);