Age Cache
A simple string map with a time to live. Similar to the maxAge setting in
lru-cache except getting a key does
not update it's time to live. Keys are not proactivly removed but only on calls
to get or has.
API
new Cache(ttl, [strict = false])
Constructor, takes 2 arguments
- ttl: time to live in milliseconds, mandatory
- strict: whether it should be in strict mode which causes gets and deletes of
non existent keys to throw, default is false.
cache.set(key, value)
Set the key to the specified value overwriting it if it already exists
cache.get(key)
Return the value with the specified key, if the key is not found then it will
return undefined or in strict mode throw an error. The key will be deleted if it
has expired.
cache.has(key)
Returns true if the key exists, false otherwise, if the key is expired it will be
deleted and this method will return false.
cache.delete(key)
Remove the key from the cache. If the key exists returns true, if it does it
returns false or, in strict mode, throws an error.
Usage
var Cache = require('age-cache');
var cache = new Cache(1000);
cache.set('foo', 'bar');
cache.get('foo');
cache.has('foo');
cache.has('bar');
setTimeout(function () {
cache.get('foo');
cache.has('foo');
}, 1001)