Installation

npm install light-logger

Example-1

var Logger = require('light-logger');

/**
 * Default log level INFO
 */
var log = new Logger();

log.debug('Debug message');
log.log('Information message');
log.warn('Warning message');
log.err('Error message');

Output:

[21:53:12.357] [INFO] -> Information message [21:53:12.358] [WARN] -> Warning message [21:53:12.358] [ERR] -> Error message

Example-2

var Logger = require('light-logger');

/**
 * Set namespace
 * Set log level DEBUG
 */
var log = new Logger('Namespace','debug');

log.debug('Debug message');
log.log('Information message');
log.warn('Warning message');
log.err('Error message');

Output:

[21:54:14.442] [DEBUG] Namespace -> Debug message [21:54:14.446] [INFO] Namespace -> Information message [21:54:14.447] [WARN] Namespace -> Warning message [21:54:14.447] [ERR] Namespace -> Error message

Example-3

var Logger = require('light-logger');

/**
 * Set namespace "Foo"
 * Set log level WARN
 * Logger enable
 */
var logger_1 = new Logger('Foo','warn',true);

/**
 * Set namespace "Bar"
 * Set log level DEBUG
 * Logger enable
 */
var logger_2 = new Logger('Bar','debug',true);

logger_1.debug('Debug message');
logger_1.log('Information message');
logger_1.warn('Warning message');
logger_1.err('Error message');

logger_2.debug('Debug message');
logger_2.log('Information message');
logger_2.warn('Warning message');
logger_2.err('Error message');

Output:

[21:56:23.270] [WARN] Foo -> Warning message [21:56:23.270] [ERR] Foo -> Error message [21:56:23.271] [DEBUG] Bar -> Debug message [21:56:23.271] [INFO] Bar -> Information message [21:56:23.272] [WARN] Bar -> Warning message [21:56:23.272] [ERR] Bar -> Error message