Interface ILogger

A logger.

Example

import log, { LogType } from "@egomobile/log"

// filter: no debug or trace
log.filter((type: LogType, args: any[]) => type <= LogType.Info)

// add one or more custom middlewares
log.use((type: LogType, args: any[]) => {
  // your code
})

// 'log' uses console by default
log("foo") // default: debug
log.debug("foo") // debug
log.error("foo") // error
log.warn("foo") // warning
log.info("foo") // information
log.trace("foo") // trace

Hierarchy

  • A logger action.

    Parameters

    • Rest ...args: any[]

      One or more argument / data to log.

    Returns void

Properties

debug error info trace warn

Methods

filter reset use

Properties

debug

debug: LogAction

Write DEBUG message.

Example

import log from '@egomobile/log'

log.debug('foo')

error

error: LogAction

Write ERROR message.

Example

import log from '@egomobile/log'

log.error('foo')

info

info: LogAction

Write INFO message.

Example

import log from '@egomobile/log'

log.info('foo')

trace

trace: LogAction

Write TRACE message.

Example

import log from '@egomobile/log'

log.trace('foo')

warn

warn: LogAction

Write WARNING message.

Example

import log from '@egomobile/log'

log.warn('foo')

Methods

filter

  • Sets a new log filter.

    Parameters

    • newFilter: undefined | null | LoggerFilter

      The new filter.

    Returns ILogger

    Example

    import log, { LogType } from '@egomobile/log'

    log.filter((type: LogType, args: any[]) => {
      // no debug or trace
      return type <= LogType.Info
    })

    Throws

    LoggerMiddleware Argument is not (null) and not (undefined) and no function.

reset

  • Resets that instance.

    Returns ILogger

    Example

    import log, { LogType } from '@egomobile/log'

    log.reset().use((type: LogType, args: any[]) => {
      // your code here
    })

use

  • Adds one or more middlewares.

    Parameters

    • Optional Rest ...middlewares: LoggerMiddleware[]

      One or more middlewares to add.

    Returns ILogger

    Example

    import log, { LogType } from '@egomobile/log'

    log.use((type: LogType, args: any[]) => {
      // your code here
    })

    Throws

    LoggerMiddleware At least one element is not a function.

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