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Rainbow🌈Print

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🌈 Enhanced console.log⌨️

Features

rainbowPrint consists of two components: the Printer and the Styler.

Both components are encapsulated within rainbowPrint.

Overview

Printer

rainbowPrint.log is the enhanced version of console.log.

Styler

rainbowPrint[styleName] is used for style declarations. rainbowPrint comes with several built-in styles. You can also extend it using rainbowPrint.addStyle or rainbowPrint.addStyles.

console.color

You can globally register console.color in the entry file of your project for easier use. rainbow-print also provides excellent TypeScript type declaration support. More details.

Usage

Basic Usage

import rainbowPrint from 'rainbow-print'

rainbowPrint.log(rainbowPrint.green('green here >>>'), 'some thing here')

Effect:

Destructuring

You can also destructure the functions:

import rainbowPrint from 'rainbow-print'

const { red, log } = rainbowPrint
log(red('red here >>>'), 'some thing here')

Effect:

Custom Styles

If you want to create custom styles, you can use addStyles or addStyle to achieve this.

When you add new styles from any instance, they will inherit the previous styles.

import rainbowPrint from 'rainbow-print'

// Custom Style
const myRainbowPrint = rainbowPrint.addStyle('skyblue', {
  color: '#fff',
  'background-color': 'skyblue',
  'font-size': '20px',
  'font-weight': 'bold',
  'border-radius': '10px',
  padding: '10px',
  margin: '10px',
})
log(myRainbowPrint.skyblue('mark >>>'), 'some thing here')

Effect:

Nesting

Nesting of stylers is allowed. For example:

import rainbowPrint from 'rainbow-print'

console.color = rainbowPrint.log

const rainbowPrint3 = rainbowPrint.addStyles({
  bold: {
    'font-weight': 'bold',
  },
  bgPink: {
    'background-color': 'pink',
  },
})
const { bold, bgPink, green } = rainbowPrint3
console.color(bold(green('here is bold green')))
console.color(bgPink(bold(green('here is bg-pink color-green font-bold'))))

Effect:

TypeScript Types

rainbowPrint is written in TypeScript and offers good code suggestions. The styles you add will also be suggested.

When you add new styles from any instance, they will inherit the previous styles.

import rainbowPrint from 'rainbow-print'

// Custom Style
const myRainbowPrint = rainbowPrint.addStyle('skyblue', {
  color: '#fff',
  'background-color': 'skyblue',
  'font-size': '20px',
  'font-weight': 'bold',
  'border-radius': '10px',
  padding: '10px',
  margin: '10px',
})
log(myRainbowPrint.skyblue('mark >>>'), 'some thing here')

// Custom Multiple Styles
const myRainbowPrint2 = myRainbowPrint.addStyles({
  orange: {
    color: 'orange',
  },
  blue: {
    color: 'blue',
  },
})
log(
  myRainbowPrint2.orange('orange >>>'),
  'some thing here',
  myRainbowPrint2.blue('<<< blue'),
  myRainbowPrint2.skyblue('from myRainbowPrint'), // Will inherit the previous style
)

Effect:

console.color

You can globally register console.color in the entry file of your project for easier use. rainbow-print also provides excellent TypeScript type declaration support.

import rainbowPrint from 'rainbow-print'

console.color = rainbowPrint.log

Type Declaration

You need to create a type declaration file (ensure it’s included in your tsconfig). In the declaration file, import rainbow-print/color as follows:

global.d.ts

/// <reference types="rainbow-print/color" />