JS Object Storage Performance
Precreate 50.000 objects (globally stored). After this create 10.000 new (non stored) objects inside a loop.
Overwrite global storage to clean up after first loop.
The additional cleanup (overwrite with null) of the global storage optimizes performance after the first loop. First loop is done after ~1150ms. The following loop needs ~350ms. Quite good. The same value as in the first example, where the data have never exist.