ansi-colors-es6

Easily add ANSI colors to your node terminal or browser console. A faster drop-in replacement for chalk, colors, kleur and turbocolor (without the dependencies and rendering bugs). And a lighter ES6 implementation of ansi-colors that works everywhere ES6+ works without the need for transpiling, unless you want to.

Install

Install with npm:

$ npm install --save ansi-colors-es6

Why use this?

ansi-colors-es6 is the fastest Node.js library for terminal and browser console styling. A more performant drop-in replacement for chalk, colors and ansi-colors with no dependencies.

• Works in the browser as well as the terminal!
• Blazing fast - Fastest terminal styling library in node.js, and the browser!
• No dependencies
• Safe - Does not modify the String.prototype like others.
• Supports nested colors, and does not have the nested styling bug that is present in colorette, chalk, and kleur.
• Supports chained colors.
• Toggle color support on or off.

Chrome

Edge

Usage

//use relative paths to allow code sharing with browsers
//this way the same exact files will work in all locations
import ansi from './node_modules/ansi-colors-es6/index.js';
 
console.log(ansi.red('This is a red string!'));
console.log(ansi.green('This is a red string!'));
console.log(ansi.cyan('This is a cyan string!'));
console.log(ansi.yellow('This is a yellow string!'));

Chained colors

//use relative paths to allow code sharing with browsers
//this way the same exact files will work in all locations
import ansi from './node_modules/ansi-colors-es6/index.js';
 
console.log(ansi.bold.red('this is a bold red message'));
console.log(ansi.bold.yellow.italic('this is a bold yellow italicized message'));
console.log(ansi.green.bold.underline('this is a bold green underlined message'));

Nested colors

//use relative paths to allow code sharing with browsers
//this way the same exact files will work in all locations
import ansi from './node_modules/ansi-colors-es6/index.js';
 
console.log(ansi.yellow(`foo ${ansi.red.bold('red')} bar ${ansi.cyan('cyan')} baz`));

Toggle color support

Easily enable/disable colors.

//use relative paths to allow code sharing with browsers
//this way the same exact files will work in all locations
import ansi from './node_modules/ansi-colors-es6/index.js';
 
// disable colors manually
ansi.enabled = false;
 
// or use a library to automatically detect support
ansi.enabled = require('color-support').hasBasic;
 
console.log(ansi.red('I will only be colored red if the terminal supports colors'));

Strip ANSI codes

Use the .unstyle method to strip ANSI codes from a string.

console.log(ansi.unstyle(ansi.blue.bold('foo bar baz')));
//=> 'foo bar baz'

Available styles

Note that bright and bright-background colors are not always supported.

Colors	Background Colors	Bright Colors	Bright Background Colors
black	bgBlack	blackBright	bgBlackBright
red	bgRed	redBright	bgRedBright
green	bgGreen	greenBright	bgGreenBright
yellow	bgYellow	yellowBright	bgYellowBright
blue	bgBlue	blueBright	bgBlueBright
magenta	bgMagenta	magentaBright	bgMagentaBright
cyan	bgCyan	cyanBright	bgCyanBright
white	bgWhite	whiteBright	bgWhiteBright
gray
grey

(gray is the U.S. spelling, grey is more commonly used in the Canada and U.K.)

Style modifiers

• dim

• bold

• hidden

• italic

• underline

• inverse

• strikethrough

• reset

Aliases

Create custom aliases for styles.

//use relative paths to allow code sharing with browsers
//this way the same exact files will work in all locations
import ansi from './node_modules/ansi-colors-es6/index.js';
 
ansi.alias('primary', ansi.yellow);
ansi.alias('secondary', ansi.bold);
 
console.log(ansi.primary.secondary('Foo'));

Themes

A theme is an object of custom aliases.

//use relative paths to allow code sharing with browsers
//this way the same exact files will work in all locations
import ansi from './node_modules/ansi-colors-es6/index.js';
 
ansi.theme({
  danger: ansi.red,
  dark: ansi.dim.gray,
  disabled: ansi.gray,
  em: ansi.italic,
  heading: ansi.bold.underline,
  info: ansi.cyan,
  muted: ansi.dim,
  primary: ansi.blue,
  strong: ansi.bold,
  success: ansi.green,
  underline: ansi.underline,
  warning: ansi.yellow
});
 
// Now, we can use our custom styles alongside the built-in styles!
console.log(ansi.danger.strong.em('Error!'));
console.log(ansi.warning('Heads up!'));
console.log(ansi.info('Did you know...'));
console.log(ansi.success.bold('It worked!'));

Contributors

Commits	Contributor
48	jonschlinkert
42	doowb
9	RIAEvangelist
6	lukeed
2	Silic0nS0ldier
1	dwieeb
1	jorgebucaran
1	madhavarshney
1	chapterjason