clearCacheTagsMap is always growing, memory leak?

[tomer-cohen-cyera]

Hi,
been using this to cache my datasource objects created by typeORM, we see a memory leak after adding the cache.
after profiling and debugging i saw that the clearCacheTagsMap in line 45 in the memoize-decorator.js is always growing, and it holds a reference to the cached items...

am i getting this wrong? is there a quick fix?
thanks got the help!

[vstefanovic97]

@tomer-cohen-cyera hi I created a PR that I think should address the issue
#60

[tomer-cohen-cyera]

looks good. we don't use the size returned by the clear method anyway, not sure what it would be useful for...
let me know if this ever gets merged. thanks.