require('chalk')（颜色的插件）

npm install chalk --save-dev

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!'));

参数说明：

Modifiers

• reset
• bold
• dim
• italic (Not widely supported)
• underline
• inverse
• hidden
• strikethrough (Not widely supported)
• visible (Text is emitted only if enabled)

Colors

• black
• red
• green
• yellow
• blue (On Windows the bright version is used since normal blue is illegible)
• magenta
• cyan
• white
• gray ("bright black")
• redBright
• greenBright
• yellowBright
• blueBright
• magentaBright
• cyanBright
• whiteBright

Background colors

• bgBlack
• bgRed
• bgGreen
• bgYellow
• bgBlue
• bgMagenta
• bgCyan
• bgWhite
• bgBlackBright
• bgRedBright
• bgGreenBright
• bgYellowBright
• bgBlueBright
• bgMagentaBright
• bgCyanBright
• bgWhiteBright

本地效果：E:\www\hxs\hxsapp-fe2\build\build.js

chalk官网：https://www.npmjs.com/package/chalk