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External module "utils/async/count-by/docs/types/index.d"

Index

Interfaces

Type aliases

Variables

Type aliases

Binary

Binary: (error: Error | null, group: string) => void

Callback function.

param

encountered error or null

param

value group

Type declaration

    • (error: Error | null, group: string): void

    • Parameters

      • error: Error | null
      • group: string

      Returns void

BinaryIndicator

BinaryIndicator: (value: any, next: Callback) => void

Checks whether an element in a collection passes a test.

param

collection value

param

a callback to be invoked after processing a collection value

Type declaration

    • Parameters

      Returns void

Callback

Callback: Nullary | Unary | Binary

Callback function.

param

encountered error or null

param

value group

DoneBinary

DoneBinary: (error: Error | null, result: any) => void

Callback invoked either upon processing all collection elements or upon encountering an error.

param

encountered error or null

param

counts

Type declaration

    • (error: Error | null, result: any): void

    • Parameters

      • error: Error | null
      • result: any

      Returns void

DoneCallback

DoneCallback: DoneNullary | DoneUnary | DoneBinary

Callback invoked either upon processing all collection elements or upon encountering an error.

param

encountered error or null

param

counts

DoneNullary

DoneNullary: () => void

Callback invoked either upon processing all collection elements or upon encountering an error.

Type declaration

    • (): void

    • Returns void

DoneUnary

DoneUnary: (error: Error | null) => void

Callback invoked either upon processing all collection elements or upon encountering an error.

param

encountered error or null

Type declaration

    • (error: Error | null): void

    • Parameters

      • error: Error | null

      Returns void

FactoryFunction

FactoryFunction: (collection: Collection, done: DoneCallback) => void

Invokes an indicator function for each element in a collection.

param

input collection

param

function to invoke upon completion

Type declaration

Indicator

Indicator: Unary | BinaryIndicator | TernaryIndicator | QuaternaryIndicator

Checks whether an element in a collection passes a test.

param

collection value

param

collection index

param

input collection

param

a callback to be invoked after processing a collection value

Nullary

Nullary: () => void

Callback function.

Type declaration

    • (): void

    • Returns void

QuaternaryIndicator

QuaternaryIndicator: (value: any, index: number, collection: Collection, next: Callback) => void

Checks whether an element in a collection passes a test.

param

collection value

param

collection index

param

input collection

param

a callback to be invoked after processing a collection value

Type declaration

TernaryIndicator

TernaryIndicator: (value: any, index: number, next: Callback) => void

Checks whether an element in a collection passes a test.

param

collection value

param

collection index

param

a callback to be invoked after processing a collection value

Type declaration

    • (value: any, index: number, next: Callback): void

    • Parameters

      • value: any
      • index: number
      • next: Callback

      Returns void

Unary

Unary: (error: Error | null) => void

Callback function.

param

encountered error or null

Type declaration

    • (error: Error | null): void

    • Parameters

      • error: Error | null

      Returns void

Variables

Export assignment countByAsync

countByAsync: CountByAsync

Groups values according to an indicator function and returns group counts.

Notes
  • This function does not guarantee that execution is asynchronous. To do so, wrap the done callback in a function which either executes at the end of the current stack (e.g., nextTick) or during a subsequent turn of the event loop (e.g., setImmediate, setTimeout).
param

input collection

param

function options

param

execution context

param

maximum number of pending invocations at any one time

param

boolean indicating whether to wait for a previous invocation to complete before invoking a provided function for the next element in a collection (default: false)

param

indicator function specifying which group an element in the input collection belongs to

param

function to invoke upon completion

throws

must provide valid options