npm 包之 chalk

$ npm install chalk

const chalk = require('chalk');

console.log(chalk.blue('Hello world!'));

const chalk = require('chalk');

const log = console.log;

// Combine styled and normal strings 

log(chalk.blue('Hello') + 'World' + chalk.red('!'));

// Compose multiple styles using the chainable API 

log(chalk.blue.bgRed.bold('Hello world!'));

// Pass in multiple arguments 

log(chalk.blue('Hello', 'World!', 'Foo', 'bar', 'biz', 'baz'));

// Nest styles 

log(chalk.red('Hello', chalk.underline.bgBlue('world') + '!'));

// Nest styles of the same type even (color, underline, background) 

log(chalk.green(

    'I am a green line ' +

    chalk.blue.underline.bold('with a blue substring') +

    ' that becomes green again!'

));

// ES2015 template literal 

log(`

CPU: ${chalk.red('90%')}

RAM: ${chalk.green('40%')}

DISK: ${chalk.yellow('70%')}

`);

// ES2015 tagged template literal 

log(chalk`

CPU: {red ${cpu.totalPercent}%}

RAM: {green ${ram.used / ram.total * 100}%}

DISK: {rgb(255,131,0) ${disk.used / disk.total * 100}%}

`);

// Use RGB colors in terminal emulators that support it. 

log(chalk.keyword('orange')('Yay for orange colored text!'));

log(chalk.rgb(123, 45, 67).underline('Underlined reddish color'));

log(chalk.hex('#DEADED').bold('Bold gray!'));