const coloring = fn => ({ background, color = 'white' }) => (...text) => fn(`%c${text.join('')}`, `color:${color};background:${background}`); const colors = { primary: '#007bff', success: '#28a745', warning: '#ffc107', danger: '#dc3545', info: '#17a2b8', }; const dir = (key = '', value = {}) => { logs.primary(`++++++++++++start:${key}++++++++++++++`); console.dir(value); logs.primary(`++++++++++++end:${key}++++++++++++++`); }; const logs = Object.keys(colors) .reduce((prev, curr) => ({ ...prev, [curr]: coloring(console.log)({ background: colors[curr] }) }), { dir }); logs.success('hello succes'); logs.warning('hello fail');

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'));

谷歌对此进行了记录 https://developers.google.com/web/tools/chrome-devtools/console/console-write#styling_console_output_with_css

CSS格式说明符允许您自定义控制台中的显示。使用说明符开始字符串，并给出希望应用的样式作为第二个参数。

一个例子:

console.log("%cThis will be formatted with large, blue text", "color: blue; font-size: x-large");

我为它创建了一个包。cslog

使用

npm i cslog

像这样使用它

import log from 'cslog'

log.h2("This is heading 2")
log.p("This is colored paragraph")
log.d(person, "Person Info")

你也可以自定义颜色。在这里

在Chrome & Firefox(+31)中，您可以在console.log消息中添加CSS:

console.log('%c我的天哪!'， '背景:#222;颜色:# bada55 ');

同样适用于在同一命令中添加多个CSS。

参考文献

MDN:样式化控制台输出 Chrome:控制台API参考

要链接横跨多行的CSS3样式，你可以这样做，

var styles = [
    'background: linear-gradient(#D33106, #571402)'
    , 'border: 1px solid #3E0E02'
    , 'color: white'
    , 'display: block'
    , 'text-shadow: 0 1px 0 rgba(0, 0, 0, 0.3)'
    , 'box-shadow: 0 1px 0 rgba(255, 255, 255, 0.4) inset, 0 5px 3px -5px rgba(0, 0, 0, 0.5), 0 -13px 5px -10px rgba(255, 255, 255, 0.4) inset'
    , 'line-height: 40px'
    , 'text-align: center'
    , 'font-weight: bold'
].join(';');

console.log('%c a spicy log message ?', styles);

结果

查看更多信息:- https://coderwall.com/p/fskzdw/colorful-console-log

欢呼。