colors.js

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get color and style in your node.js console

Installation

npm install colors

colors and styles!

text colors

• black
• red
• green
• yellow
• blue
• magenta
• cyan
• white
• gray
• grey

bright text colors

• brightRed
• brightGreen
• brightYellow
• brightBlue
• brightMagenta
• brightCyan
• brightWhite

background colors

• bgBlack
• bgRed
• bgGreen
• bgYellow
• bgBlue
• bgMagenta
• bgCyan
• bgWhite
• bgGray
• bgGrey

bright background colors

• bgBrightRed
• bgBrightGreen
• bgBrightYellow
• bgBrightBlue
• bgBrightMagenta
• bgBrightCyan
• bgBrightWhite

styles

• reset
• bold
• dim
• italic
• underline
• inverse
• hidden
• strikethrough

extras

• rainbow
• zebra
• america
• trap
• random

Usage

By popular demand, colors now ships with two types of usages!

The super nifty way

```js var colors = require('colors');

console.log('hello'.green); // outputs green text console.log('i like cake and pies'.underline.red) // outputs red underlined text console.log('inverse the color'.inverse); // inverses the color console.log('OMG Rainbows!'.rainbow); // rainbow console.log('Run the trap'.trap); // Drops the bass

```

or a slightly less nifty way which doesn't extend String.prototype

```js var colors = require('colors/safe');

console.log(colors.green('hello')); // outputs green text console.log(colors.red.underline('i like cake and pies')) // outputs red underlined text console.log(colors.inverse('inverse the color')); // inverses the color console.log(colors.rainbow('OMG Rainbows!')); // rainbow console.log(colors.trap('Run the trap')); // Drops the bass

```

I prefer the first way. Some people seem to be afraid of extending String.prototype and prefer the second way.

If you are writing good code you will never have an issue with the first approach. If you really don't want to touch String.prototype, the second usage will not touch String native object.

Enabling/Disabling Colors

The package will auto-detect whether your terminal can use colors and enable/disable accordingly. When colors are disabled, the color functions do nothing. You can override this with a command-line flag:

```bash node myapp.js --no-color node myapp.js --color=false

node myapp.js --color node myapp.js --color=true node myapp.js --color=always

FORCE_COLOR=1 node myapp.js ```

Or in code:

javascript var colors = require('colors'); colors.enable(); colors.disable();

Console.log string substitution

js var name = 'Marak'; console.log(colors.green('Hello %s'), name); // outputs -> 'Hello Marak'

Custom themes

Using standard API

```js

var colors = require('colors');

colors.setTheme({ silly: 'rainbow', input: 'grey', verbose: 'cyan', prompt: 'grey', info: 'green', data: 'grey', help: 'cyan', warn: 'yellow', debug: 'blue', error: 'red' });

// outputs red text console.log("this is an error".error);

// outputs yellow text console.log("this is a warning".warn); ```

Using string safe API

```js var colors = require('colors/safe');

// set single property var error = colors.red; error('this is red');

// set theme colors.setTheme({ silly: 'rainbow', input: 'grey', verbose: 'cyan', prompt: 'grey', info: 'green', data: 'grey', help: 'cyan', warn: 'yellow', debug: 'blue', error: 'red' });

// outputs red text console.log(colors.error("this is an error"));

// outputs yellow text console.log(colors.warn("this is a warning"));

```

Combining Colors

```javascript var colors = require('colors');

colors.setTheme({ custom: ['red', 'underline'] });

console.log('test'.custom); ```

Protip: There is a secret undocumented style in colors. If you find the style you can summon him.