xxd-log

Usage

const log = require('xxd-log');

// Different log levels
// Accept same arguments as `console.log()`
const count = 5;
log.trace('count: %d', count);
log.debug('count:', count);
log.info(`count: ${count}`);
log.warn({count});
log.error(new Error(`count (${count}) is wrong.`));
log.fatal('Duang!');

// Use chalk directly
console.log(log.chalk.red('This is red.'));

Configure

// Change options of the default logger instance.

log.withLabel = false; // Do not display labels before messages.
log.withTimestamp = false; // Do not display current time before messages.
log.highlightStackTrace = false; // Do not highlight key positions in error stack trace.
log.timestampFormat = 'HH:mm:ss.SSS'; // Customize the time format.

log.withLabel = log.newLogger().options.withLabel; // reset an option.

// Use an individual instance with different options

const anotherLogger = log.newLogger({
  withLabel: false,
  withTimestamp: false,
  highlightStackTrace: false,
})

You can change these options at any time in the process, and will take effect from next call of logging.

For further instruction of time format, please see moment.js documentation

Options List

Option	Type	Description
withTimestamp	boolean	Control if print message with timestamp before, default to true
withLabel	boolean	Control if print message with label (indicating log level) before, default to true
timestampFormat	string	Define how timestamp looks like, see moment.format() (http://momentjs.com/docs/#/displaying/format/), default to 'YYYY-MM-SS HH:mm:ss'
highlightStackTrace	string	Control if highlight files in project (in process.cwd(), and not in node_modules) in error stack trace. default to true

Requirements

• Node.js > 6.0.0
• or Node.js > 4.0.0 with --harmony