由于眼睛的问题,我不得不将控制台背景色改为白色,但字体是灰色的,它使消息无法阅读。我怎样才能改变呢?


当前回答

没有库,没有复杂,只是简单:

console.log(red('Error!'));

function red(s) {
    return '\033[31m' + s;
}

其他回答

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);

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

var to_rgb = function (_text, _r, _g, _b) {
    return "\x1b[38;2;" + _r + ";" + _g + ";" + _b + "m" + _text + "\x1b[0m";
};

此代码帮助设置前景色:\x1b[38;2;R;G;Bm

这在某些地方可能行不通

最小的别名:

{
  const f = (color) => (...args) => {
    for (const x of [color, ...args, "\33[0m"]) console.log(x);
  };

  Object.assign(console, {
    black: f("\33[30m"),
    red: f("\33[31m"),
    green: f("\33[32m"),
    yellow: f("\33[33m"),
    blue: f("\33[34m"),
    magenta: f("\33[35m"),
    cyan: f("\33[36m"),
    white: f("\33[37m"),
  });
}

// Usage
console.blue("Blue world");

你可以使用下面的例子: https://help.ubuntu.com/community/CustomizingBashPrompt

也是nodeJs的一个要旨

例如,如果你想让部分文本显示为红色,只需执行console.log with:

"\033[31m this will be red \033[91m and this will be normal"

基于此,我为Node.js创建了“colog”扩展。你可以使用以下方法安装:

npm install colog

回购和npm: https://github.com/dariuszp/colog