Research
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an-lru-cache
Advanced tools
Readme
A simple LRU Cache, a Map that has a maximum number of entries and which discards the least recently used items first.
To install
$ npm install an-lru-cache
The API mirrors the builtin Map
and WeakMap
APIs but does not include iterators.
const { LruCache } = require('an-lru-cache')
const myCache = new LruCache() // Default capacity is 100
function foo(key, value) {
myCache.set(key, value)
// ...
return myCache.get(key)
}
function bar(key) {
if (myCache.has(key)) {
// ...
}
myCache.delete(key)
}
.set(key, value)
Associates value with key so that .get(key)
returns value
until a subsequent .set
or .delete
with the same key or
eviction.
.get(key, fallbackValue=undefined)
Returns the value associated with key, or the fallbackValue if supplied.
Gets may return the fallbackValue even if there was a value associated with key if that entry was evicted to ensure that the number of entries did not exceed the maximum allowed.
.delete(key, fallbackValue=undefined)
Deletes any entry for the given key returning the previously associated value if present or fallbackValue otherwise.
.has(key)
True iff there is a value associated with key
.
FAQs
A simple LRU Cache, a Map that has a maximum number of entries and which discards the least recently used items first.
The npm package an-lru-cache receives a total of 9 weekly downloads. As such, an-lru-cache popularity was classified as not popular.
We found that an-lru-cache demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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