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。

选项1

// log-css.js v2
const log = console.log.bind()
const css = (text, options) => {
    let cssOptions = ''
    for (let prop in options) {
        const value = options[prop]
        prop = camelCaseToDashCase(prop)
        cssOptions += `${prop}: ${value}; `
    }
    return [`%c${text}`, cssOptions.trim()]

    function camelCaseToDashCase(value) {
        return value.replace(/[A-Z]/g, matched => `-${matched.toLowerCase()}`)
    }
}

例子:

log(...css('Example =P', {
    backgroundColor: 'blue',
    color: 'white',
    // fontFamily: 'Consolas',
    fontSize: '25px',
    fontWeight: '700',
    // lineHeight: '25px',
    padding: '7px 7px'
}))

选项2

我现在创建log-css.js https://codepen.io/luis7lobo9b/pen/QWyobwY

// log-css.js v1
const log = console.log.bind();
const css = function(item, color = '#fff', background = 'none', fontSize = '12px', fontWeight = 700, fontFamily) {
    return ['%c ' + item + ' ', 'color:' + color + ';background:' + background + ';font-size:' + fontSize + ';font-weight:' + fontWeight + (fontFamily ? ';font-family:' + fontFamily : '')];
};

例子:

log(...css('Lorem ipsum dolor sit amet, consectetur adipisicing elit.', 'rebeccapurple', '#000', '14px'));

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:

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')

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');

几年前，我为自己写了一个非常非常简单的插件:

要添加到你的页面，你所需要做的就是把这个放在头部:

<script src="https://jackcrane.github.io/static/cdn/jconsole.js" type="text/javascript">

然后在JS中:

jconsole.color.red.log('hellllooo world');

该框架有以下代码:

jconsole.color.red.log();
jconsole.color.orange.log();
jconsole.color.yellow.log();
jconsole.color.green.log();
jconsole.color.blue.log();
jconsole.color.purple.log();
jconsole.color.teal.log();

以及:

jconsole.css.log("hello world","color:red;");

对于任何其他css。上面的代码是用以下语法设计的:

jconsole.css.log(message to log,css code to style the logged message)