log-info

Handy for info logging!

Install

Npm:

npm install log-info

Yarn:

yarn add log-info

Usage

Add this to your script:

require('log-info');

And if you now run this:

require('log-info');

console.log('I\'m using log-info!')

You should see something like this:

It also works with clusters:

const numCPUs = require('os').cpus().length;
const cluster = require('cluster');

require('log-info');

if (cluster.isMaster) {

    console.log('Log from %s!', 'master');
    console.info('Info from %s!', 'master');
    console.warn('Warn from %s!', 'master');
    console.error('Error from %s!', 'master');
    console.debug('Debug from %s!', 'master');

    for (var i = 0; i < numCPUs; i++) {
        cluster.fork();
    }

} else {

    console.log('Log from %s!', 'cluster');

}

Should look something like this:

Colors

You can add colors to your console.log's now, the syntax is as follows:

[<color | hex color> <text>]

Example:

require('log-info');

console.log('[blue This text should be blue.]')

console.log('[#00ff00 This text should be a bright %s.]', 'green')

console.log('[cyan There should be] [#ff0000 multiple colors] in this text.')

You should see something like this:

If your console does not support more than 256 colors, you can not use hex colors, just the colors below:

Options

You can configure some options to customize the output to your likings.

Options.time

Can be set to one of the following:

• normal - Gives the standard time output, e.g. 26-03-2019 15:42:23.463. (default value)
• iso - Gives the time in ISO format, e.g. 2019-03-26T14:42:23.463Z
• none - Gives no time output.

Example:

require('log-info')({
    time: 'none'
});

console.log('A log whitout time!');

Will result in:

Options.pid

Can be set to the following:

• true - Adds the pid of the process after the time. If it is the master process, it will be colored purple. (default value)
• false - Rremoves the pid of the output.

Example:

require('log-info')({
    pid: false
});

console.log('A log whitout pid!');

Will result in:

Options.info

Can be set to the following:

• true - Will add the type of log (info (green), warn (yellow), error (red) or debug (blue)) after the pid. (default value)
• false - Will remove the info from the output.

Example:

require('log-info')({
    info: false
});

console.log('A log whitout info!');

Will result in:

Options.newline

Can be set to the following:

• true - Adds a return (newline) after all the info. (default value)
• false - Does not add a return (newline) after all the info

require('log-info')({
    newline: false
});

console.log('A log without a newline!');

Will result in:

Options.char

You can set it to whatever you want as long as it is a string!

• options.char[0] - The character to put on the left of the information. ([ is the default)
• options.char[1] - The character to put on the right of the information. (] is the default)

Example:

require('log-info')({
    char: [ '=>', '<=' ]
});

console.log('A log with a custom character!');

Will result in:

Credits

I used some of the code from Bahamas10's log-prefix and modified it a bit to make log-info.