Comments (4)
Idk, kinda sounds like a footgun. If you want an item that doesn't have a TTL, better off using a Map
or plain old object instead of a cache that keeps things sorted by expiration.
More to the point, it would require a different data structure internally to do that. This module is able to efficiently prune by taking advantage of the fact that V8 keeps numeric object keys sorted. If a value's TTL is Infinity
, then its expiration is also Infinity
, which would be cast to the string 'Infinity'
, and then it'd need a bunch of special case logic to detect non-numeric expiration values. Not really a fit, sorry.
from ttlcache.
Actually this might not be so bad. It does reduce performance a bit to have the string 'Infinity'
in the TTL object, which I'm guessing is owing to it no longer being an object with strictly numeric keys. But it does the right thing without much added complexity. Adding the footgun!
from ttlcache.
Actually I can do it without having 'Infinity'
in the ttl object, it's faster to have the extra check and not take the deopt.
from ttlcache.
from ttlcache.
Related Issues (18)
- typescript support HOT 1
- purgeStale skips purge due to expiration ceil (assumption) making cache use stale values HOT 2
- Module not found: Can't resolve 'perf_hooks' HOT 4
- Feature request: dispose function should be passed the time when an entry would have naturally expired HOT 2
- Module not found: Can't resolve 'perf_hooks' HOT 2
- Too slow HOT 8
- [BUG] cannot graceful stop due to leaked Timeout HOT 1
- Iterating entries/keys/values in dispose() function results in undefined entry for the stale element HOT 3
- Calling `.clear()` while elements are in the cache causes an exception when they are subsequently attempted to be purged as stale HOT 1
- bug: deleting an immortal entry causes an error HOT 1
- Feature request: Control over stale entries being emitting before or after collection removal HOT 4
- Feature request: Third argument to `set` can be either an object or Number HOT 2
- cache expiration does not work HOT 10
- Potential race condition issues HOT 3
- keys function can't return key of Infinity ttl HOT 2
- Add `maxSize` `maxEntrySize` and `sizeCalculation` options HOT 1
- Potential issues in CI environment HOT 1
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