Chrome内置的JavaScript控制台可以显示颜色吗?

我想要错误在红色,警告在橙色和控制台。log在绿色。这可能吗?


当前回答

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。

其他回答

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

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。

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

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'));