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A basic logger.

Hierarchy

Implements

Index

Constructors

constructor

  • new LoggerBase(options?: EventEmitterOptions): LoggerBase
  • Parameters

    • Optional options: EventEmitterOptions

    Returns LoggerBase

Properties

Static Readonly captureRejectionSymbol

captureRejectionSymbol: typeof captureRejectionSymbol

Static captureRejections

captureRejections: boolean

Sets or gets the default captureRejection value for all emitters.

Static defaultMaxListeners

defaultMaxListeners: number

Static Readonly errorMonitor

errorMonitor: typeof errorMonitor

This symbol shall be used to install a listener for only monitoring 'error' events. Listeners installed using this symbol are called before the regular 'error' listeners are called.

Installing a listener using this symbol does not change the behavior once an 'error' event is emitted, therefore the process will still crash if no regular 'error' listener is installed.

Methods

addListener

  • addListener(event: string | symbol, listener: (...args: any[]) => void): LoggerBase
  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns LoggerBase

alert

  • Logs an alert message.

    inheritdoc

    Parameters

    • msg: any
    • Optional tag: string

    Returns LoggerBase

crit

  • Logs a critical message.

    inheritdoc

    Parameters

    • msg: any
    • Optional tag: string

    Returns LoggerBase

debug

  • Logs a debug message.

    inheritdoc

    Parameters

    • msg: any
    • Optional tag: string

    Returns LoggerBase

emerg

  • Logs an emergency message.

    inheritdoc

    Parameters

    • msg: any
    • Optional tag: string

    Returns LoggerBase

emit

  • emit(event: string | symbol, ...args: any[]): boolean
  • Parameters

    • event: string | symbol
    • Rest ...args: any[]

    Returns boolean

err

  • Logs an error message.

    inheritdoc

    Parameters

    • msg: any
    • Optional tag: string

    Returns LoggerBase

eventNames

  • eventNames(): (string | symbol)[]
  • Returns (string | symbol)[]

getMaxListeners

  • getMaxListeners(): number
  • Returns number

info

  • Logs an info message.

    inheritdoc

    Parameters

    • msg: any
    • Optional tag: string

    Returns LoggerBase

listenerCount

  • listenerCount(event: string | symbol): number
  • Parameters

    • event: string | symbol

    Returns number

listeners

  • listeners(event: string | symbol): Function[]
  • Parameters

    • event: string | symbol

    Returns Function[]

log

  • log(type: LogType, msg: any, tag?: string): Promise<void>
  • Logs a message.

    inheritdoc

    Parameters

    • type: LogType
    • msg: any
    • Optional tag: string

    Returns Promise<void>

Protected logSync

  • Sync logging.

    Parameters

    • type: LogType

      The type.

    • msg: any

      The message.

    • Optional tag: string

    Returns LoggerBase

Protected normalizeTag

  • normalizeTag(tag: string): string
  • Normalizes a tag value.

    Parameters

    • tag: string

      The input value.

    Returns string

    The output value.

notice

  • Logs a note message.

    inheritdoc

    Parameters

    • msg: any
    • Optional tag: string

    Returns LoggerBase

off

  • off(event: string | symbol, listener: (...args: any[]) => void): LoggerBase
  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns LoggerBase

on

  • on(event: string | symbol, listener: (...args: any[]) => void): LoggerBase
  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns LoggerBase

Protected Abstract onLog

  • The logic for logging a message.

    Parameters

    Returns Promise<any>

    Invoke log event or not.

once

  • once(event: string | symbol, listener: (...args: any[]) => void): LoggerBase
  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns LoggerBase

prependListener

  • prependListener(event: string | symbol, listener: (...args: any[]) => void): LoggerBase
  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns LoggerBase

prependOnceListener

  • prependOnceListener(event: string | symbol, listener: (...args: any[]) => void): LoggerBase
  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns LoggerBase

rawListeners

  • rawListeners(event: string | symbol): Function[]
  • Parameters

    • event: string | symbol

    Returns Function[]

removeAllListeners

  • removeAllListeners(event?: string | symbol): LoggerBase
  • Parameters

    • Optional event: string | symbol

    Returns LoggerBase

removeListener

  • removeListener(event: string | symbol, listener: (...args: any[]) => void): LoggerBase
  • Parameters

    • event: string | symbol
    • listener: (...args: any[]) => void
        • (...args: any[]): void
        • Parameters

          • Rest ...args: any[]

          Returns void

    Returns LoggerBase

setMaxListeners

  • Parameters

    • n: number

    Returns LoggerBase

trace

  • Logs a trace message.

    inheritdoc

    Parameters

    • msg: any
    • Optional tag: string

    Returns LoggerBase

warn

  • Logs a warning message.

    inheritdoc

    Parameters

    • msg: any
    • Optional tag: string

    Returns LoggerBase

Static listenerCount

  • listenerCount(emitter: EventEmitter, event: string | symbol): number
  • deprecated

    since v4.0.0

    Parameters

    • emitter: EventEmitter
    • event: string | symbol

    Returns number

Static on

  • on(emitter: EventEmitter, event: string): AsyncIterableIterator<any>
  • Parameters

    • emitter: EventEmitter
    • event: string

    Returns AsyncIterableIterator<any>

Static once

  • once(emitter: NodeEventTarget, event: string | symbol): Promise<any[]>
  • once(emitter: DOMEventTarget, event: string): Promise<any[]>
  • Parameters

    • emitter: NodeEventTarget
    • event: string | symbol

    Returns Promise<any[]>

  • Parameters

    • emitter: DOMEventTarget
    • event: string

    Returns Promise<any[]>

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