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  • License MIT

Detect whether a terminal supports color

Package Exports

  • supports-color

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (supports-color) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

supports-color Build Status

Detect whether a terminal supports color

Install

$ npm install supports-color

Usage

const supportsColor = require('supports-color');

if (supportsColor) {
    console.log('Terminal supports color');
}

if (supportsColor.has256) {
    console.log('Terminal supports 256 colors');
}

if (supportsColor.has16m) {
    console.log('Terminal supports 16 million colors (truecolor)');
}

API

Returns an Object, or false if color is not supported.

The returned object specifies a level of support for color through a .level property and a corresponding flag:

  • .level = 1 and .hasBasic = true: Basic color support (16 colors)
  • .level = 2 and .has256 = true: 256 color support
  • .level = 3 and .has16m = true: 16 million (truecolor) support

Info

It obeys the --color and --no-color CLI flags.

For situations where using --color is not possible, add an environment variable FORCE_COLOR=1 to forcefully enable color and FORCE_COLOR=0 forcefully disable. The use of FORCE_COLOR overrides all other color checks performed by this module.

Explicit 256/truecolor mode can be enabled using the --color=256 and --color=16m flags, respectively.

Maintainers

License

MIT