Class Cache

constructor

• new Cache(opts?): Cache

• Constructs a cache.

  Parameters

  • opts: {
        byteCapacity?: number;
        maxNumberOfEntries?: number;
        ttl?: number;
    } = ...

    The options.

    • OptionalbyteCapacity?: number

      The capacity, in bytes, of the cache.

    • OptionalmaxNumberOfEntries?: number

      The capacity, in number of entries, of the cache.

    • Optionalttl?: number

      The default TTL (time to live) of entries. Can be overriden for each entry (see CacheOptions).

  Returns Cache

ReadonlyisMemoryUsage

capacity

• get capacity(): number

• Gets the maximum number of entries.

  Returns number

count

• get count(): number

• Gets the number of entries.

  Returns number

defaultTtl

• get defaultTtl(): number

• Gets or sets the default TTL (time to live) of the cache.

  Returns number
• set defaultTtl(v): void

• Parameters

  • v: number

  Returns void

enabled

• get enabled(): boolean

• Enables or disables the cache.

  Returns boolean
• set enabled(v): void

• Parameters

  • v: boolean

  Returns void

maxSize

• get maxSize(): number

• Gets the maximum size of the cache, in bytes.

  Returns number

size

• get size(): number

• Gets the size of entries, in bytes

  Returns number

clear

• clear(): void

• Clears the cache.

  Returns void

delete

• delete(key): boolean

• Deletes an entry.

  Parameters

  • key: string

    The key.

  Returns boolean

  true if the entry was deleted, false otherwise.

entries

• entries(): unknown[]

• Returns an array of entries.

  Returns unknown[]

get

• get(key): unknown

• Returns the entry with the specified key, or undefined if no entry matches this key.

  Parameters

  • key: string

    The entry key.

  Returns unknown

  The entry, or undefined.

getMemoryUsage

• getMemoryUsage(context): void

• Returns an approximation of the memory used by this object, in bytes.

  Parameters

  • context: GetMemoryUsageContext

    The graphics context.

  Returns void

purge

• purge(): void

• Removes stale entries.

  Returns void

set

• set<T>(key, value, options?): T

• Stores an entry in the cache, or replaces an existing entry with the same key.

  Type Parameters

  • T extends object

  Parameters

  • key: string

    The key.
  • value: T

    The value.
  • options: CacheOptions = {}

    The options.

  Returns T