# picocolors The tiniest and the fastest library for terminal output formatting with ANSI colors. ```javascript import pc from "picocolors" console.log( pc.green(`How are ${pc.italic(`you`)} doing?`) ) ``` - **No dependencies.** - **14 times** smaller and **2 times** faster than chalk. - Used by popular tools like PostCSS, SVGO, Stylelint, and Browserslist. - Node.js v6+ & browsers support. Support for both CJS and ESM projects. - TypeScript type declarations included. - [`NO_COLOR`](https://no-color.org/) friendly. ## Motivation With `picocolors` we are trying to draw attention to the `node_modules` size problem and promote performance-first culture. ## Prior Art Credits go to the following projects: - [Nanocolors](https://github.com/ai/nanocolors) by [@ai](https://github.com/ai) - [Colorette](https://github.com/jorgebucaran/colorette) by [@jorgebucaran](https://github.com/jorgebucaran) - [Kleur](https://github.com/lukeed/kleur) by [@lukeed](https://github.com/lukeed) - [Colors.js](https://github.com/Marak/colors.js) by [@Marak](https://github.com/Marak) - [Chalk](https://github.com/chalk/chalk) by [@sindresorhus](https://github.com/sindresorhus) ## Benchmarks The space in node_modules including sub-dependencies: ```diff $ node ./benchmarks/size.js Data from packagephobia.com chalk 101 kB cli-color 1249 kB ansi-colors 25 kB kleur 21 kB colorette 17 kB nanocolors 16 kB + picocolors 7 kB ``` Library loading time: ```diff $ node ./benchmarks/loading.js chalk 6.760 ms cli-color 37.949 ms ansi-colors 1.790 ms kleur 2.278 ms kleur/colors 0.858 ms colorette 2.724 ms nanocolors 0.885 ms + picocolors 0.470 ms ``` Benchmark for simple use case: ```diff $ node ./benchmarks/simple.js chalk 17,544,513 ops/sec cli-color 808,186 ops/sec ansi-colors 3,798,290 ops/sec kleur 17,209,612 ops/sec kleur/colors 29,425,416 ops/sec colorette 30,236,826 ops/sec nanocolors 29,618,223 ops/sec + picocolors 29,514,102 ops/sec ``` Benchmark for complex use cases: ```diff $ node ./benchmarks/complex.js chalk 856,888 ops/sec cli-color 109,678 ops/sec ansi-colors 306,752 ops/sec kleur 568,643 ops/sec kleur/colors 984,151 ops/sec colorette 1,337,991 ops/sec nanocolors 1,088,193 ops/sec + picocolors 1,772,265 ops/sec ``` ## Usage Picocolors provides an object which includes a variety of text coloring and formatting functions ```javascript import pc from "picocolors" ``` The object includes following coloring functions: `black`, `red`, `green`, `yellow`, `blue`, `magenta`, `cyan`, `white`, `gray`. ```javascript console.log(`I see a ${pc.red("red door")} and I want it painted ${pc.black("black")}`) ``` The object also includes following background color modifier functions: `bgBlack`, `bgRed`, `bgGreen`, `bgYellow`, `bgBlue`, `bgMagenta`, `bgCyan`, `bgWhite`. ```javascript console.log( pc.bgBlack( pc.white(`Tom appeared on the sidewalk with a bucket of whitewash and a long-handled brush.`) ) ) ``` Besides colors, the object includes following formatting functions: `dim`, `bold`, `hidden`, `italic`, `underline`, `strikethrough`, `reset`, `inverse`. ```javascript for (let task of tasks) { console.log(`${pc.bold(task.name)} ${pc.dim(task.durationMs + "ms")}`) } ``` The library provides additional utilities to ensure the best results for the task: - `isColorSupported` — boolean, explicitly tells whether or not the colors or formatting appear on the screen ```javascript import pc from "picocolors" if (pc.isColorSupported) { console.log("Yay! This script can use colors and formatters") } ``` - `createColors(enabled)` — a function that returns a new API object with manually defined color support configuration ```javascript import pc from "picocolors" let { red, bgWhite } = pc.createColors(options.enableColors) ``` ## Replacing `chalk` 1. Replace package name in import: ```diff - import chalk from 'chalk' + import pico from 'picocolors' ``` 2. Replace variable: ```diff - chalk.red(text) + pico.red(text) ``` 3. Replace chains to nested calls: ```diff - chalk.red.bold(text) + pico.red(pico.bold(text)) ``` 4. You can use [`colorize-template`](https://github.com/usmanyunusov/colorize-template) to replace chalk’s tagged template literal. ```diff + import { createColorize } from 'colorize-template' + let colorize = createColorize(pico) - chalk.red.bold`full {yellow ${"text"}}` + colorize`{red.bold full {yellow ${"text"}}}` ```
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