https://github.com/watson/console-log-level

The most simple logger imaginable
https://github.com/watson/console-log-level

Last synced: 4 days ago
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The most simple logger imaginable

• Host: GitHub
• URL: https://github.com/watson/console-log-level
• Owner: watson
• License: mit
• Created: 2015-01-05T16:12:38.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2023-12-03T14:06:30.000Z (about 1 year ago)
• Last Synced: 2024-10-30T01:36:55.122Z (3 months ago)
• Language: JavaScript
• Size: 35.2 KB
• Stars: 111
• Watchers: 9
• Forks: 27
• Open Issues: 8
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# console-log-level

A dead simple logger. Will log to STDOUT or STDERR depending on the

chosen log level. It uses `console.info`, `console.warn` and

`console.error` and hence supports the same API.

Log levels supported: trace, debug, info, warn, error and fatal.

[![npm](https://img.shields.io/npm/v/console-log-level.svg)](https://www.npmjs.com/package/console-log-level)

[![Build status](https://travis-ci.org/watson/console-log-level.svg?branch=master)](https://travis-ci.org/watson/console-log-level)

[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat)](https://github.com/feross/standard)

## Installation

```

npm install console-log-level

```

## Example usage

```js

var log = require('console-log-level')({ level: 'info' })

log.trace('a') // will not do anything

log.debug('b') // will not do anything

log.info('c')  // will output 'c\n' on STDOUT

log.warn('d')  // will output 'd\n' on STDERR

log.error('e') // will output 'e\n' on STDERR

log.fatal('f') // will output 'f\n' on STDERR

```

## Options

Configure the logger by passing an options object:

```js

var log = require('console-log-level')({

  prefix: function (level) {

    return new Date().toISOString()

  },

  level: 'info'

})

```

### level

A `string` to specify the log level. Defaults to `info`.

### prefix

Specify this option if you want to set a prefix for all log messages.

This must be a `string` or a `function` that returns a string.

Will get the level of the currently logged message as the first

argument.

### stderr

A `boolean` to log everything to stderr. Defauls to `false`.

## License

[MIT](LICENSE)