cross-log-name

Get a cross-platform log file name.

By default this library returns a string, representing the log file name, in the following format:

${application_name}.${iso-8601-date}.log

Using the appropriate options, you can customize:

• application name (you can turn it off too!)
• delimiter between the application name and the date segment
• use the full date-time string or a date only string
• delimiter used in the date format (defaults to '-')
• file extension

Installation

Note: to use this library, you have to have installed Node.js and a console you can run commands into. The minimum required version of Node.js is: 8 - codename "Carbon".

In your console, run the following command:

$ npm install cross-log-name

You can also use yarn (like we do in this project):

$ yarn add cross-log-name

Usage

This library exports a function which returns a string with a possible log file name.

const logname = require('..');

// Returns a string similar to 'example.YYYY-MM-DD-HH-mm-ss.txt'
logname(new Date(), {
	basename: 'example',
    extension: '.txt'
});

You can find other usage examples in the examples directory.

API

logname(date?, options?)

Returns a string with the log file name.

date

Type: Date | number

Optional date to use in the log name. Defaults to now.

options

Type: object

Optional parameters to configure this function's behaviour.

basename

Type: string

Default: 'app'

Prefix of the log file name.

dateDelimiter

Type: string

Default: '-'

Delimiter used to separate each date "component".

extension

Type: string

Default: '.log'

Log file extension (including the first '.').

includeTime

Type: boolean

Default: true

In the date section of the file name, include the time segments (hours, minutes and seconds).

nameDelimiter

Type: string

Default: '.'

Delimiter used between basename and the date section.

Related