Logging support

from simple console logging to file-based logging


_ <- fat.extra.Logger

console library, color library, file library, time library, sdk library, and type library are automatically imported with this import

Logger Type

Logger provides customizable logging capabilities with various levels and formats.


  • level: Text (default 'debug') - Logging level
  • showTime: Boolean (default true) - Flag to display timestamps

valid levels: 'debug', 'info', 'warn', 'error'

Prototype members

Name Signature Brief
setLevel (level: Text) Sets the logging level
setShowTime (showTime: Boolean) Toggles timestamp display in logs
asMessage (level: Text, args: Scope): Text Formats log messages (can be overridden)
log (msg: Any, fg: Number) Outputs messages (can be overridden)

Logging methods

  • debug(_1, _2, _3, _4, _5): Logs a debug message
  • info(_1, _2, _3, _4, _5): Logs an info message
  • warn(_1, _2, _3, _4, _5): Logs a warning message
  • error(_1, _2, _3, _4, _5): Logs an error message



  • Inherits from Logger
  • Overrides log to output plain text without color


  • Inherits from Logger
  • Additional Properties:
    • logfile: Text (default 'log.txt') - file for logging
  • Overrides log to append messages to a file

Usage Example

_ <- fat.extra.Logger

# Create an instance with custom settings
myLogger = Logger(level = 'info', showTime = false)

# Log an information message
myLogger.info('This is an informational message.')

# Create a FileLogger to log messages to a file
fileLogger = FileLogger('myLog.txt')
fileLogger.info('Logged to file.')

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