tiny-console-logger   

Small and super simple console logger with log level, formatter and custom reporter support. Runs in node and the browser, written in TypeScript.

Installation

``
npm i tiny-console-logger
`

Getting started

`ts
import createLogger, { LogLevel } from 'tiny-console-logger';

const logger = createLogger();
logger.setLevel(LogLevel.INFO);
logger.log('Hello');
`

Log levels

- LogLevel.ERROR: allows .error calls
- LogLevel.WARN: allows .warn calls and calls above
- LogLevel.INFO: allows .log and .info calls and calls above
- LogLevel.DEBUG: allows .debug calls and calls above
- LogLevel.TRACE: allows .trace calls and calls above

Reporters

A reporter does the actual logging. The default reporter uses the global console, but it's also possible to use a custom reporter:

`ts
const arrayLog = [];
logger.setReporter((args, methodName, logLevel) => {
arrayLog.push([${logLevel}] ${args.map(String).join(' ')});
});
`

Because reporters are functions, they are easy to combine:

`ts
import createLogger, { defaultReporter } from 'tiny-console-logger';

const arrayLog = [];
const logger = createLogger();

logger.setReporter((args, methodName, logLevel) => {
arrayLog.push([${logLevel}] ${args.map(String).join(' ')});
defaultReporter(args, methodName, logLevel);
});
`

Formatters

A formatter modifies arguments passed to the reporter. The default formatter just returns arguments as-is, but it's possible to use a custom formatter:

`ts
logger.setFormatter(args => ['[prefix]', ...args]);
`

Or:

`ts
logger.setFormatter((args, methodName, logLevel) => [
[${logLevel}:prefix],
...args,
(console.${methodName})
]);
`

Methods

#### Logging methods

- trace(...args: any[])
- debug(...args: any[])
- info(...args: any[])
- log(...args: any[])
- warn(...args: any[])
- error(...args: any[])

#### setLevel(level: LogLevel)

Sets the log level.

`
logger.setLevel(LogLevel.ERROR)
`

#### getLevel(): LogLevel

Returns the current log level.

#### setFormatter(formatter: Formatter)

Sets custom formatter.

#### setReporter(reporter: Reporter)`

Sets custom reporter.