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@blackglory/structures
Advanced tools
Readme
Common structures.
npm install --save @blackglory/structures
# or
yarn add @blackglory/structures
class Box<T> {
get [Symbol.toStringTag](): string
constructor(value: T)
get(): T
set(value: T): void
}
function convertConsToArray<T>([value, next]: Cons<T>): T[]
function convertArrayToCons<T>([value, ...next]: T[]): Cons<T>
type Listener<Args extends unknown[]> = (...args: Args) => void
class Emitter<EventToArgs extends Record<string, unknown[]>> {
get [Symbol.toStringTag](): string
on<T extends keyof EventToArgs>(
event: T
, listener: Listener<EventToArgs[T]>
): () => void
once<T extends keyof EventToArgs>(
event: T
, listener: Listener<EventToArgs[T]>
): () => void
emit<T extends keyof EventToArgs>(event: T, ...args: EventToArgs[T]): void
}
class HashMap<K, V, Hash = unknown> {
get [Symbol.toStringTag](): string
get size(): number
constructor(hash: (key: K) => Hash)
set(key: K, value: V): this
has(key: K): boolean
get(key: K): V | undefined
delete(key: K): boolean
clear(): void
}
class HashSet<V, Hash = unknown> implements Iterable<V> {
get [Symbol.toStringTag](): string
get size(): number
[Symbol.iterator](): IterableIterator<V>
constructor(hash: (value: V) => Hash)
add(value: V): this
delete(value: V): boolean
has(value: V): boolean
clear(): void
values(): Iterable<V>
}
class LRUMap<K, V> {
get [Symbol.toStringTag](): string
get size(): number
constructor(limit: number)
set(key: K, value: V): this
has(key: K): boolean
get(key: K): V | undefined
delete(key: K): boolean
clear(): void
}
class ExpirableMap<K, V> {
get[Symbol.toStringTag](): string
get size(): number
constructor()
set(key: K, value: V, maxAge: number): this
has(key: K): boolean
get(key: K): V | undefined
delete(key: K): boolean
clear(): void
}
class TLRUMap<K, V> {
get[Symbol.toStringTag](): string
get size(): number
constructor(limit: number)
set(key: K, value: V, maxAge: number): this
has(key: K): boolean
get(key: K): V | undefined
delete(key: K): boolean
clear(): void
}
class Queue<T> {
get [Symbol.toStringTag](): string
get size(): number
empty(): void
enqueue(...items: T[]): void
dequeue(): T | undefined
remove(item: T): void
}
class TrieMap<K extends Iterable<T>, V, T = unknown> {
get [Symbol.toStringTag](): string
keys(): Iterable<T[]>
values(): Iterable<V>
entries(): Iterable<[key: T[], value: V]>
set(key: K, value: V): this
has(key: K): boolean
get(key: K): V | undefined
delete(key: K): boolean
}
type IFiniteStateMachineSchema<State extends string, Event extends string> =
Record<State, Partial<Record<Event, State>>>
class FiniteStateMachine<State extends string, Event extends string> {
get [Symbol.toStringTag](): string
get state(): State
constructor(
schema: IFiniteStateMachineSchema<State, Event>
, initialState: State
)
matches(state: State): boolean
can(event: Event): boolean
/**
* @throws {BadEventError}
*/
send(event: Event): void
}
interface IFiniteStateMachineStateChange<
State extends string
, Event extends string
> {
event: Event
oldState: State
newState: State
}
class ObservableFiniteStateMachine<
State extends string
, Event extends string
> extends FiniteStateMachine<State, Event> {
get [Symbol.toStringTag](): string
observeStateChanges(): Observable<IFiniteStateMachineStateChange<State, Event>>
}
class SparseSet {
get [Symbol.toStringTag](): string
get [Symbol.iterator](): IterableIterator<number>
add(value: number): void
has(value: number): boolean
remove(value: number): void
}
class DynamicTypedArray<T extends TypedArrayConstructor> {
get [Symbol.toStringTag](): string
get capacity(): number
get length(): number
/**
* Note that `DynamicTypedArray` cannot respond to any operations on the internal array,
* you must ensure that indexes accessed are less than the length of `DynamicTypedArray`.
*/
get internalTypedArray(): TypedArrayOfConstructor<T>
constructor(
typedArrayConstructor: T
, options: {
capacity?: number = 0
growthFactor?: number = 1.5
} = {}
)
set(index: number, value: number): void
get(index: number): number | undefined
push(...values: number[]): void
pop(): number | undefined
}
FAQs
Common structures.
The npm package @blackglory/structures receives a total of 440 weekly downloads. As such, @blackglory/structures popularity was classified as not popular.
We found that @blackglory/structures demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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