Coolors

它非常适合使用或扩展。你可以简单地使用:

var coolors = require('coolors');
console.log(coolors('My cool console log', 'red'));

或者使用config:

var coolors = require('coolors');
console.log(coolors('My cool console log', {
   text: 'yellow',
   background: 'red',
   bold: true,
   underline: true,
   inverse: true,
   strikethrough: true
}));

延伸一下似乎很有趣:

var coolors = require('coolors');
function rainbowLog(msg){
    var colorsText = coolors.availableStyles().text;
    var rainbowColors = colorsText.splice(3);
    var lengthRainbowColors = rainbowColors.length;
    var msgInLetters = msg.split('');
    var rainbowEndText = '';
    var i = 0;
    msgInLetters.forEach(function(letter){
        if(letter != ' '){
            if(i === lengthRainbowColors) i = 0;
            rainbowEndText += coolors(letter, rainbowColors[i]);
            i++;
        }else{
            rainbowEndText += ' ';
        }
    });
    return rainbowEndText;
}
coolors.addPlugin('rainbow', rainbowLog);
console.log(coolorsExtended('This its a creative example extending core with a cool rainbown style', 'rainbown'));

视图Coolors模块

我为不能有依赖的npm脚本写了一个方便的一行代码:

Const {r, g, b, w, c, m, y, k} = [ ['r'， 1]， ['g'， 2]， ['b'， 4]， ['w'， 7]， ['c'， 6]， ['m'， 5]， ['y'， 3]， ['k'， 0]， ]．Reduce ((cols, col) => ({ .．.关口,[坳[0]]:f = > ' \ x1b[3{坳[1]}美元$ {f} \ x1b [0 m ' }, {}) console.log(' ${g('I')} love ${r('Italy')} ')

R,g,b,w,c,m,y,k分别代表红色，绿色，蓝色，白色，青色，品红，黄色和黑色。

2017:

简单的方法，为消息添加时间颜色，你不需要改变你的代码，使用keep your console.log('msg')或console.err('error')

var clc = require("cli-color");
var mapping = {
  log: clc.blue,
  warn: clc.yellow,
  error: clc.red
};

["log", "warn", "error"].forEach(function(method) {
  var oldMethod = console[method].bind(console);
  console[method] = function() {
    oldMethod.apply(
      console,
      [mapping[method](new Date().toISOString())]
      .concat(arguments)
    );
  };
});

我重载了控制台方法。

var colors={
Reset: "\x1b[0m",
Red: "\x1b[31m",
Green: "\x1b[32m",
Yellow: "\x1b[33m"
};

var infoLog = console.info;
var logLog = console.log;
var errorLog = console.error;
var warnLog = console.warn;

console.info= function(args)
{
    var copyArgs = Array.prototype.slice.call(arguments);
    copyArgs.unshift(colors.Green);
    copyArgs.push(colors.Reset);
    infoLog.apply(null,copyArgs);
};

console.warn= function(args)
{
    var copyArgs = Array.prototype.slice.call(arguments);
    copyArgs.unshift(colors.Yellow);
    copyArgs.push(colors.Reset);
    warnLog.apply(null,copyArgs);
};
console.error= function(args)
{
    var copyArgs = Array.prototype.slice.call(arguments);
    copyArgs.unshift(colors.Red);
    copyArgs.push(colors.Reset);
    errorLog.apply(null,copyArgs);
};

// examples
console.info("Numeros",1,2,3);
console.warn("pares",2,4,6);
console.error("reiniciandooo");

输出为。

内联typescript解决方案

export const color = (function (colors) {
    const fn = (code: number, str: string) => `\x1b[${code}m${str}\x1b[39m`;
    const obj = { grey: fn.bind(null, 90) };
    for (let i = 0; i < colors.length; i++) obj[colors[i]] = fn.bind(null, 30 + i);
    return obj as { [K in typeof colors[any] | 'grey']: (str: string) => string };
})(['black', 'red', 'green', 'yellow', 'blue', 'magenta', 'cyan', 'white'] as const);

var colorSet = {
    Reset: "\x1b[0m",
    Red: "\x1b[31m",
    Green: "\x1b[32m",
    Yellow: "\x1b[33m",
    Blue: "\x1b[34m",
    Magenta: "\x1b[35m"
};

var funcNames = ["info", "log", "warn", "error"];
var colors = [colorSet.Green, colorSet.Blue, colorSet.Yellow, colorSet.Red];

for (var i = 0; i < funcNames.length; i++) {
    let funcName = funcNames[i];
    let color = colors[i];
    let oldFunc = console[funcName];
    console[funcName] = function () {
        var args = Array.prototype.slice.call(arguments);
        if (args.length) {
            args = [color + args[0]].concat(args.slice(1), colorSet.Reset);
        }
        oldFunc.apply(null, args);
    };
}

// Test:
console.info("Info is green.");
console.log("Log is blue.");
console.warn("Warn is orange.");
console.error("Error is red.");
console.info("--------------------");
console.info("Formatting works as well. The number = %d", 123);