下面是另一种方法(在Typescript中)，它覆盖console.log函数并检查传递的消息，以便根据消息中的开始标记应用CSS格式。这个方法的一个好处是被调用者不需要使用一些包装console.log函数，他们可以坚持使用普通的console.log()，所以如果这个覆盖消失，该功能将恢复到默认的console.log:

// An example of disabling logging depending on environment:
const isLoggingEnabled = process.env.NODE_ENV !== 'production';

// Store the original logging function so we can trigger it later
const originalConsoleLog = console.log;

// Override logging to perform our own logic
console.log = (args: any) => {
    if (!isLoggingEnabled) {
        return;
    }

    // Define some tokens and their corresponding CSS
    const parsing = [
        {
            token: '[SUCCESS]',
            css: 'color: green; font-weight: bold;',
        },
        {
            token: '[ERROR]',
            css: 'color: red; font-weight: bold;',
        },
        {
            token: '[WARN]',
            css: 'color: orange; font-weight: bold;',
        },
        {
            token: '[DEBUG]',
            css: 'color: blue;',
        },
    ];

    // Currently only supports console.log(...) with a single string argument. 
    if (typeof args === 'string') {
        const message: string = args;
        let formattedArgs: string[] = [];
        for (let i = 0; i < parsing.length; i += 1) {
            const parser = parsing[i];
            if (args.startsWith(parser.token)) {
                formattedArgs = [`%c${message.substring(parser.token.length + 1, message.length)}`, parser.css];
                break;
            }
        }
        originalConsoleLog.apply(console, formattedArgs);
    } else {
        originalConsoleLog.apply(console, args);
    }
};

使用示例:

console.log('[ERROR] Something went wrong!');

输出:

实际上，我只是偶然发现了这个，好奇会发生什么，但你实际上可以使用bash着色标志来设置Chrome输出的颜色:

console.log('\x1b[36m Hello \x1b[34m Colored \x1b[35m World!');
console.log('\x1B[31mHello\x1B[34m World');
console.log('\x1b[43mHighlighted');

输出:

查看这个链接了解颜色标志的工作原理:https://misc.flogisoft.com/bash/tip_colors_and_formatting

基本上用\x1b或\x1b来代替\e。如。\x1b[31m及之后的所有文本将切换为新颜色。

虽然我还没有在其他浏览器中尝试过这个功能，但我认为值得一提。

模板系统，有用的，如果你想创建彩色的行文本，而不为每个块创建完整的风格

var tpl = 'background-color:greenyellow; border:3px solid orange; font-size:18px; font-weight: bold;padding:3px 5px;color:';
console.log('%cMagenta %cRed %cBlue', `${tpl} magenta`, `${tpl} Red`,`${tpl} #4274fb`);

有一系列内置函数用于为控制台日志上色:

//For pink background and red text
console.error("Hello World");  

//For yellow background and brown text
console.warn("Hello World");  

//For just a INFO symbol at the beginning of the text
console.info("Hello World");  

//for custom colored text
console.log('%cHello World','color:blue');
//here blue could be replaced by any color code

//for custom colored text with custom background text
console.log('%cHello World','background:red;color:#fff')

看看这个:

控制台动画，加上CSS

(function() {
  var frame = 0;
  var frames = [
    "This",
    "is",
    "SPARTA!",
    " ",
    "SPARTA!",
    " ",
    "SPARTA!",
    " ",
    "SPARTA!",
    " ",
    "SPARTA!",
    " ",
    "SPARTA!"
  ];
  var showNext = () => {
    console.clear();
    console.log(
      `%c `,
      "background: red; color: white; font-size: 15px; padding: 3px 41%;"
    );
    console.log(
      `%c ${frames[frame]}`,
      "background: red; color: white; font-size: 25px; padding: 3px 40%;"
    );
    console.log(
      `%c `,
      "background: red; color: white; font-size: 15px; padding: 3px 41%;"
    );
    setTimeout(
      showNext,
      frames[frame] === "SPARTA!" || frames[frame] === " " ? 100 : 1500
    );
    // next frame and loop
    frame++;
    if (frame >= frames.length) {
      frame = 0;
    }
  };
  showNext();
})();

https://jsfiddle.net/a8y3jhfL/

你可以在每一帧中粘贴ASCII来观看ASCII动画

colors = {
    reset: '\033[0m',

    //text color

    black: '\033[30m',
    red: '\033[31m',
    green: '\033[32m',
    yellow: '\033[33m',
    blue: '\033[34m',
    magenta: '\033[35m',
    cyan: '\033[36m',
    white: '\033[37m',

    //background color

    blackBg: '\033[40m',
    redBg: '\033[41m',
    greenBg: '\033[42m',
    yellowBg: '\033[43m',
    blueBg: '\033[44m',
    magentaBg: '\033[45m',
    cyanBg: '\033[46m',
    whiteBg: '\033[47m'
}

console.log('\033[31m this is red color on text');
console.log('\033[0m this is reset');
console.log('\033[41m this is red color on background');