大家都知道可以使用 console.log() 在控制台中打印简单的文本和变量。
但你可能不知道的是，你还可以在控制台中渲染 CSS、SVG 甚至 HTML？！
今天我们就来一起看看这些酷炫的技巧吧，绝对可以让你网站的控制台焕然一新。
在控制台中渲染 CSS
%c ，可以让我们可以使用一些 CSS 样式来渲染控制台消息（比如console.log或console.info）。
我们应该使用 console.log 还是 console.info ？
通常情况下，console.log 用于调试目的，而 console.info 用于提供更相关于最终用户的信息。在浏览器处理它们的方式上，它们之间唯一的区别是一些样式上的差异。我们在本文中使用 console.info 更合适。
让我们看看它是如何工作的。
以下是 Adobe Photoshop 在线版本的 console.info（部分未缩小）：
console.info(
'%c %cAdobe %cPhotoshop Web%c %c2023.23.0.1%c %c037a8af9746',
'padding-left: 36px; line-height: 36px; background-image: url("data:image/gif;base64,R0lGODlhIAAgAPEBAAAAAP///wAAAAAAACH5BAEAAAIALAAAAAAgACAAAAKkhC+py3zfopxGvIsztsCGD4La2FVAGBoBuZnox45WcqLsum5KDWdvf1nwTo+fLbgDqo7LFCJJbOY0oidt6ozVKrtib0qaCnlYcJh7rf5iK6HZaM64VeS6L+pWf89WT+6vRAUBBVQ1gpOTJ4IYdxCnOBSJ8ZhkZNekk5ZSxpTpt6Y1eEVm00j3VALDmBXVyPEJB2r2ShoLh2ASqvU60dsr5yuBUQAAOw=="); background-size: 32px; background-repeat: no-repeat; background-position: 2px 2px',
'background: #666; border-radius:0.5em 0 0 0.5em; padding:0.2em 0em 0.1em 0.5em; color: white; font-weight: bold',
'background: #666; border-radius:0 0.5em 0.5em 0; padding:0.2em 0.5em 0.1em 0em; color: white;',
'',
'background: #c3a650; border-radius:0.5em; padding:0.2em 0.5em 0.1em 0.5em; color: white;',
'',
'background: #15889f; border-radius:0.5em; padding:0.2em 0.5em 0.1em 0.5em; color: white;'
);
这是它在 Chrome 和 Edge 中的样子：
你可能已经猜到了，%c 后面跟着的字符串对应着每个元素。每个元素都会生成一个具有display: inline样式的新元素。
SVG 以 data:image 的形式进行渲染，任何数据图像在这里都可以使用！
在控制台中渲染 HTML
在控制台消息中，我们没办法直接编写 HTML 代码，但是我们可以在 SVG 的背景图像中渲染 HTML。
HTML 内容具有与 SVG 本身相同类型的限制，例如不允许使用 <a> 标签，不允许使用事件监听器等。
在 SVG 中使用 HTML 可能特别有助于包含列表或使用相对定位等内容。
这还有另一个好处，就是可以进行 3D 变换！SVG 内容本身不能应用 3D 变换，但是在 SVG 中的 foreignObject 中的 HTML 可以！
console.info(
'%c ',
`line-height:200px;padding-block:100px;padding-left:200px;background-repeat:no-repeat;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200'%3E%3Cstyle%3E .wrapper %7B font-family: sans-serif; perspective: 500px; text-align: center; position: relative; width: 100%25; height: 100%25; %7D .cube %7B position: absolute; top: 20%25; left: 30%25; transform-style: preserve-3d; transform: rotateY(40deg) rotateX(-40deg); animation: wiggle_wiggle_wiggle_wiggle_wiggle_yeah 3s ease-in-out infinite alternate; %7D .side %7B width: 8rem; height: 8rem; background: rgba(0, 0, 0, 0.8); display: inline-block; position: absolute; line-height: 8rem; color: %23fff; text-align: center; box-sizing: border-box; border: 3px solid %23f00; font-size: 4rem; %7D .front %7B transform: translateZ(4rem); z-index: 1; %7D .back %7B transform: rotateY(180deg) translateZ(4rem); %7D .left %7B transform: rotateY(-90deg) translateZ(4rem); z-index: 1; %7D .right %7B transform: rotateY(90deg) translateZ(4rem); %7D .top %7B transform: rotateX(90deg) translateZ(4rem); %7D .bottom %7B transform: rotateX(-90deg) translateZ(4rem); %7D @keyframes wiggle_wiggle_wiggle_wiggle_wiggle_yeah %7B 0%25 %7B transform: rotateY(15deg) rotateX(-15deg); %7D 100%25 %7B transform: rotateY(60deg) rotateX(-45deg); %7D %7D %3C/style%3E%3CforeignObject width='100%25' height='100%25'%3E%3Cdiv xmlns='http://www.w3.org/1999/xhtml' class='wrapper'%3E%3Cdiv class='cube'%3E%3Cdiv class='side front'%3E1%3C/div%3E%3Cdiv class='side back'%3E6%3C/div%3E%3Cdiv class='side left'%3E3%3C/div%3E%3Cdiv class='side right'%3E4%3C/div%3E%3Cdiv class='side top'%3E2%3C/div%3E%3Cdiv class='side bottom'%3E5%3C/div%3E%3C/div%3E%3C/div%3E%3C/foreignObject%3E%3C/svg%3E")`
);
可能会给你带来启发的示例效果
那么，有了这些能力和限制，我们可以制作些什么呢？以下是一些额外的想法，希望能激发你的灵感！
为了方便调试和阅读，大家可以把压缩在一行的样式代码输入到这个 CodePen (https://codepen.io/ZachSaucier/pen/KKJOJWR) 中，它可以帮你自动格式化样式代码：
欢迎条幅
比如你可以为你的博客添加一个简单的欢迎条幅：
console.info(
'%c ',
`padding-left:750px;padding-top:200px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 750 200'%3E%3Cstyle%3E text %7B font-family: sans-serif; font-weight: 100; fill: %23d8eaff; %7D %23stop1 %7B animation: recolor 40s linear infinite alternate %7D %23stop2 %7B animation: recolor 40s -32s linear infinite alternate %7D @keyframes recolor %7B 0%25 %7B stop-color: %23388bee; %7D 20%25 %7B stop-color: %2324c6dc; %7D 40%25 %7B stop-color: %23af74fd; %7D 60%25 %7B stop-color: %23c020d9; %7D 80%25 %7B stop-color: %23514a9d; %7D 100%25 %7B stop-color: %23053ece; %7D %7D %3C/style%3E%3Cdefs%3E%3ClinearGradient id='grad'%3E%3Cstop id='stop1' offset='0%25' stop-color='%23388bee'%3E%3C/stop%3E%3Cstop id='stop2' offset='100%25' stop-color='%23514a9d'%3E%3C/stop%3E%3C/linearGradient%3E%3C/defs%3E%3Crect width='750' height='500' fill='url(%23grad)'%3E%3C/rect%3E%3Ctext text-anchor='end' font-size='50' x='725' y='125'%3E 欢迎来到 %3C/text%3E%3Ctext text-anchor='end' font-size='50' x='725' y='175'%3E code秘密花园 %3C/text%3E%3C/svg%3E")`
);
动画效果
你可以实现一个更酷炫一点的画线动画，但如果你愿意，也可以添加更多装饰元素、绘制形状轮廓或创建持续的可视化效果：
console.info(
'%c ',
`padding-left:840.42px;padding-top:80.75px;background-repeat:no-repeat;background-image:url("data:image/svg+xml,%3Csvg class='container' xmlns='http://www.w3.org/2000/svg' viewBox='0 0 840.42 80.75'%3E%3Cstyle%3E .container %7B background: linear-gradient(to left, %23112, %23223); %7D @keyframes draw %7B 40%25, 80%25 %7B opacity: 1; stroke-dashoffset: 0; stroke: %23ec0062; %7D 95%25, 100%25 %7B stroke-dashoffset: 0; opacity: 0; %7D %7D .line %7B fill: none; stroke: %23334; stroke-width: 4.75; stroke-linecap: round; stroke-miterlimit: 10; stroke-dasharray: 200; animation: draw 7s infinite ease-in-out; %7D .line-reverse %7B stroke-dashoffset: -200; %7D .line-forwards %7B stroke-dashoffset: 200; %7D %3C/style%3E%3C!-- A --%3E%3Cpolyline class='line line-forwards' points='2.38,77.83 33.4,6.55 64.42,77.83'%3E%3C/polyline%3E%3Cline class='line line-forwards' x1='17.96' y1='42.19' x2='38.47' y2='42.19'%3E%3C/line%3E%3C!-- M --%3E%3Cpolyline class='line line-forwards' points='81.87,78.01 81.87,6.37 113.21,42.55 143.91,6.37'%3E%3C/polyline%3E%3Cpath class='line line-forwards' d='M113.21,42.55'%3E%3C/path%3E%3Cpath class='line line-forwards' d='M113.21,42.55'%3E%3C/path%3E%3Cline class='line line-forwards' x1='143.91' y1='16.66' x2='143.91' y2='78.01'%3E%3C/line%3E%3C!-- E --%3E%3Cpolyline class='line line-forwards' points='223,6.73 160.96,6.73 160.96,78.01 222.95,78.01'%3E%3C/polyline%3E%3Cline class='line line-forwards' x1='171.25' y1='42.37' x2='213.59' y2='42.37'%3E%3C/line%3E%3C!-- L --%3E%3Cline class='line line-forwards' x1='240.14' y1='6.73' x2='240.14' y2='78.37'%3E%3C/line%3E%3Cpath class='line line-forwards' d='M240.14,6.73'%3E%3C/path%3E%3Cline class='line line-forwards' x1='250.43' y1='78.37' x2='302.18' y2='78.37'%3E%3C/line%3E%3C!-- I --%3E%3Cline class='line line-forwards' x1='319.21' y1='6.73' x2='319.21' y2='78.37'%3E%3C/line%3E%3C!-- Reverse A --%3E%3Cpolyline class='line line-reverse' points='398.4,77.83 367.38,6.55 336.36,77.83'%3E%3C/polyline%3E%3Cline class='line line-reverse' x1='382.81' y1='42.19' x2='362.31' y2='42.19'%3E%3C/line%3E%3C!-- C --%3E%3Cpath class='line line-reverse' d='M504.32,78.37h-9.41H478.1c-19.78,0-35.82-16.04-35.82-35.82c0-19.78,16.04-35.82,35.82-35.82h26.22'%3E%3C/path%3E%3C!-- A --%3E%3Cpolyline class='line line-forwards' points='521.62,77.83 552.64,6.55 583.66,77.83'%3E%3C/polyline%3E%3Cline class='line line-forwards' x1='537.21' y1='42.19' x2='557.71' y2='42.19'%3E%3C/line%3E%3C!-- R --%3E%3Cpath class='line line-reverse' d='M610.94,42.19h19.4c9.89,0,17.91-8.02,17.91-17.91s-8.02-17.91-17.91-17.91h-29.65v71.64'%3E%3C/path%3E%3Cline class='line line-forwards' x1='630.34' y1='42.19' x2='662.73' y2='78.01'%3E%3C/line%3E%3C!-- L --%3E%3Cline class='line line-forwards' x1='679.89' y1='6.73' x2='679.89' y2='78.37'%3E%3C/line%3E%3Cline class='line line-forwards' x1='690.18' y1='78.37' x2='741.93' y2='78.37'%3E%3C/line%3E%3C!-- I --%3E%3Cline class='line line-forwards' x1='758.96' y1='6.73' x2='758.96' y2='78.37'%3E%3C/line%3E%3C!-- E --%3E%3Cpolyline class='line line-forwards' points='838.04,6.73 776,6.73 776,78.01 837.99,78.01'%3E%3C/polyline%3E%3Cline class='line line-forwards' x1='786.29' y1='42.37' x2='828.63' y2='42.37'%3E%3C/line%3E%3C/svg%3E")`
);
粒子效果
你甚至可以创建基本的粒子效果，比如下面这个下雪效果：
console.info(
'%c ',
/*
* 提示：该行代码过长，系统自动注释不进行高亮。一键复制会移除系统注释
* `padding-left:800px;line-height:250px;padding-block:125px;background-repeat:no-repeat;background-image:url("data:image/svg+xml,%3Csvg class='svg-snowscene' viewBox='0 0 800 250' xmlns='http://www.w3.org/2000/svg'%3E%3Cstyle%3E@keyframes snowing%7B0%25%7Bfill-opacity:1%7D100%25%7Bfill-opacity:0;transform:translateY(250px)%7D%7D.svg-snowscene%7Bbackground-color:%239cf;background-image:linear-gradient(%236af,%23bdf)%7Dtext%7Bfill:%23fff;font-family:cursive%7Dcircle%7Bfill:%23fff;animation-name:snowing;animation-iteration-count:infinite;animation-timing-function:ease-out%7Dcircle:nth-child(1n)%7Banimation-delay:-.2s;animation-duration:7s%7Dcircle:nth-child(2n)%7Banimation-delay:-.4s;animation-duration:6s%7Dcircle:nth-child(3n)%7Banimation-delay:-.6s;animation-duration:8s%7Dcircle:nth-child(4n)%7Banimation-delay:-.8s;animation-duration:9s%7Dcircle:nth-child(5n)%7Banimation-delay:-1s;animation-duration:8s%7Dcircle:nth-child(6n)%7Banimation-delay:-1.2s;animation-duration:10s%7Dcircle:nth-child(7n)%7Banimation-delay:-1.4s;animation-duration:10s%7Dcircle:nth-child(8n)%7Banimation-delay:-1.6s;animation-duration:10s%7Dcircle:nth-child(9n)%7Banimation-delay:-1.8s;animation-duration:8s%7Dcircle:nth-child(10n)%7Banimation-delay:-2s;animation-duration:9s%7Dcircle:nth-child(11n)%7Banimation-delay:-2.2s;animation-duration:7s%7Dcircle:nth-child(12n)%7Banimation-delay:-2.4s;animation-duration:8s%7Dcircle:nth-child(13n)%7Banimation-delay:-2.6s;animation-duration:9s%7Dcircle:nth-child(14n)%7Banimation-delay:-2.8s;animation-duration:10s%7Dcircle:nth-child(15n)%7Banimation-delay:-3s;animation-duration:10s%7Dcircle:nth-child(16n)%7Banimation-delay:-3.2s;animation-duration:6s%7Dcircle:nth-child(17n)%7Banimation-delay:-3.4s;animation-duration:7s%7Dcircle:nth-child(18n)%7Banimation-delay:-3.6s;animation-duration:6s%7Dcircle:nth-child(19n)%7Banimation-delay:-3.8s;animation-duration:8s%7Dcircle:nth-child(20n)%7Banimation-delay:-4s;animation-duration:6s%7Dcircle:nth-child(21n)%7Banimation-delay:-4.2s;animation-duration:9s%7Dcircle:nth-child(22n)%7Banimation-delay:-4.4s;animation-duration:9s%7Dcircle:nth-child(23n)%7Banimation-delay:-4.6s;animation-duration:8s%7Dcircle:nth-child(24n)%7Banimation-delay:-4.8s;animation-duration:7s%7Dcircle:nth-child(25n)%7Banimation-delay:-5s;animation-duration:8s%7Dcircle:nth-child(26n)%7Banimation-delay:-5.2s;animation-duration:7s%7Dcircle:nth-child(27n)%7Banimation-delay:-5.4s;animation-duration:6s%7Dcircle:nth-child(28n)%7Banimation-delay:-5.6s;animation-duration:8s%7Dcircle:nth-child(29n)%7Banimation-delay:-5.8s;animation-duration:10s%7Dcircle:nth-child(30n)%7Banimation-delay:-6s;animation-duration:10s%7Dcircle:nth-child(31n)%7Banimation-delay:-6.2s;animation-duration:9s%7Dcircle:nth-child(32n)%7Banimation-delay:-6.4s;animation-duration:10s%7Dcircle:nth-child(33n)%7Banimation-delay:-6.6s;animation-duration:10s%7Dcircle:nth-child(34n)%7Banimation-delay:-6.8s;animation-duration:6s%7Dcircle:nth-child(35n)%7Banimation-delay:-7s;animation-duration:6s%7Dcircle:nth-child(36n)%7Banimation-delay:-7.2s;animation-duration:10s%7Dcircle:nth-child(37n)%7Banimation-delay:-7.4s;animation-duration:7s%7Dcircle:nth-child(38n)%7Banimation-delay:-7.6s;animation-duration:9s%7Dcircle:nth-child(39n)%7Banimation-delay:-7.8s;animation-duration:9s%7Dcircle:nth-child(40n)%7Banimation-delay:-8s;animation-duration:8s%7Dcircle:nth-child(41n)%7Banimation-delay:-8.2s;animation-duration:6s%7Dcircle:nth-child(42n)%7Banimation-delay:-8.4s;animation-duration:10s%7Dcircle:nth-child(43n)%7Banimation-delay:-8.6s;animation-duration:7s%7Dcircle:nth-child(44n)%7Banimation-delay:-8.8s;animation-duration:9s%7Dcircle:nth-child(45n)%7Banimation-delay:-9s;animation-duration:10s%7Dcircle:nth-child(46n)%7Banimation-delay:-9.2s;animation-duration:6s%7Dcircle:nth-child(47n)%7Banimation-delay:-9.4s;animation-duration:7s%7Dcircle:nth-child(48n)%7Banimation-delay:-9.6s;animation-duration:9s%7Dcircle:nth-child(49n)%7Banimation-delay:-9.8s;animation-duration:7s%7Dcircle:nth-child(50n)%7Banimation-delay:-10s;animation-duration:7s%7D%3C/style%3E%3Ctext font-size='80' text-anchor='middle' x='400' y='140'%3E你好，code秘密花园%3C/text%3E%3Ccircle cx='25.995103990111105%25' cy='-77.81008995571561' r='2.749159658185124'%3E%3C/circle%3E%3Ccircle cx='89.62561554717637%25' cy='-46.78148229694086' r='2.393631489179748'%3E%3C/circle%3E%3Ccircle cx='5.135745159612563%25' cy='-38.81872689180804' r='2.841244102307123'%3E%3C/circle%3E%3Ccircle cx='40.819201884845775%25' cy='-34.58293639476059' r='1.4458270158519961'%3E%3C/circle%3E%3Ccircle cx='26.212971825618283%25' cy='-12.498573576229386' r='2.9709903306827465'%3E%3C/circle%3E%3Ccircle cx='76.68859580291824%25' cy='-62.21926850640058' r='1.1347363710323926'%3E%3C/circle%3E%3Ccircle cx='55.72266234658971%25' cy='-74.73326327616485' r='1.113806305196924'%3E%3C/circle%3E%3Ccircle cx='39.0317830273073%25' cy='-58.703705511039225' r='2.3100083626369976'%3E%3C/circle%3E%3Ccircle cx='89.7176436793289%25' cy='-10.281820667480222' r='2.0469063477660447'%3E%3C/circle%3E%3Ccircle cx='83.96827591096722%25' cy='-81.2478772998329' r='1.790201302779563'%3E%3C/circle%3E%3Ccircle cx='7.260053772750218%25' cy='-96.49215734429552' r='2.3545864333810256'%3E%3C/circle%3E%3Ccircle cx='26.883202292253728%25' cy='-37.108549732420656' r='1.9978674352572674'%3E%3C/circle%3E%3Ccircle cx='58.50316757093038%25' cy='-44.19563368875621' r='2.1333080325968745'%3E%3C/circle%3E%3Ccircle cx='49.153134743170924%25' cy='-96.61192814231214' r='1.0338012128288736'%3E%3C/circle%3E%3Ccircle cx='80.66335728120768%25' cy='-92.60017007342769' r='1.352444421725643'%3E%3C/circle%3E%3Ccircle cx='49.21716180537502%25' cy='-15.736517819787414' r='2.56514014572579'%3E%3C/circle%3E%3Ccircle cx='18.159072047777208%25' cy='-41.662630986758565' r='1.827289622857739'%3E%3C/circle%3E%3Ccircle cx='28.591656766804356%25' cy='-75.40392903873996' r='2.540805639719657'%3E%3C/circle%3E%3Ccircle cx='75.7560667785456%25' cy='-42.093604757726446' r='1.411351114203426'%3E%3C/circle%3E%3Ccircle cx='95.86623136857125%25' cy='-86.17237490881534' r='1.6437772466697007'%3E%3C/circle%3E%3Ccircle cx='66.57358996698223%25' cy='-33.05038635630268' r='1.224578596470813'%3E%3C/circle%3E%3Ccircle cx='37.87486333612133%25' cy='-91.98642442806697' r='1.5164858217037178'%3E%3C/circle%3E%3Ccircle cx='99.9780409949983%25' cy='-85.25670632025145' r='1.093408865757894'%3E%3C/circle%3E%3Ccircle cx='6.258195692333731%25' cy='-82.17612056080935' r='2.5970745236726915'%3E%3C/circle%3E%3Ccircle cx='76.92756548357505%25' cy='-39.05022432020484' r='1.3903120977596086'%3E%3C/circle%3E%3Ccircle cx='35.30776480586916%25' cy='-5.100866152259875' r='2.490933162143621'%3E%3C/circle%3E%3Ccircle cx='21.888577746640067%25' cy='-53.61306945430116' r='1.5911619566776065'%3E%3C/circle%3E%3Ccircle cx='5.408329205067845%25' cy='-25.216367465595514' r='1.7561674911504097'%3E%3C/circle%3E%3Ccircle cx='11.607577654364524%25' cy='-50.29316328357586' r='1.9271574194581076'%3E%3C/circle%3E%3Ccircle cx='80.61508259836967%25' cy='-56.47870637418366' r='2.7379039794681383'%3E%3C/circle%3E%3Ccircle cx='75.29235125946235%25' cy='-24.205675758687455' r='1.7921437262309654'%3E%3C/circle%3E%3Ccircle cx='97.78226376693122%25' cy='-32.21154549976014' r='1.529148319088483'%3E%3C/circle%3E%3Ccircle cx='73.75693711579706%25' cy='-23.004150289082606' r='2.4556699382045046'%3E%3C/circle%3E%3Ccircle cx='41.419838495897%25' cy='-65.31921232448768' r='2.8044281379588676'%3E%3C/circle%3E%3Ccircle cx='40.950298123173106%25' cy='-26.292156289520896' r='2.419680017572999'%3E%3C/circle%3E%3Ccircle cx='47.867691980584716%25' cy='-26.242657523185184' r='1.0923877243334101'%3E%3C/circle%3E%3Ccircle cx='62.81766527782989%25' cy='-89.701930860537' r='1.7949190430635444'%3E%3C/circle%3E%3Ccircle cx='48.69722811509327%25' cy='-10.958255978759077' r='2.861844670749401'%3E%3C/circle%3E%3Ccircle cx='34.57978264890831%25' cy='-1.1612908265357433' r='1.6199043038315515'%3E%3C/circle%3E%3Ccircle cx='37.96738880106298%25' cy='-12.825961059362545' r='2.8559531388340513'%3E%3C/circle%3E%3Ccircle cx='85.46233678220392%25' cy='-88.02351857384527' r='1.0984128042737793'%3E%3C/circle%3E%3Ccircle cx='64.4596084875124%25' cy='-19.803934792180392' r='2.6968494185321026'%3E%3C/circle%3E%3Ccircle cx='56.87846924216383%25' cy='-68.9330339781381' r='2.441322855837859'%3E%3C/circle%3E%3Ccircle cx='87.67115279021654%25' cy='-57.12781963683186' r='1.268498259959995'%3E%3C/circle%3E%3Ccircle cx='87.86909883390128%25' cy='-65.7354110827157' r='1.2941568814088011'%3E%3C/circle%3E%3Ccircle cx='30.16692089861322%25' cy='-34.69868021057453' r='1.082850239075611'%3E%3C/circle%3E%3Ccircle cx='63.21354400809286%25' cy='-48.79787125206968' r='2.6866316912738153'%3E%3C/circle%3E%3Ccircle cx='73.1130164281696%25' cy='-14.128826564618988' r='2.396208563109712'%3E%3C/circle%3E%3Ccircle cx='49.592435166991244%25' cy='-28.576612560341417' r='2.265863084175359'%3E%3C/circle%3E%3Ccircle cx='12.364052530549507%25' cy='-22.31568226585923' r='2.8058073048920886'%3E%3C/circle%3E%3Cscript%3Efunction r(min, max) %7B return Math.random() * (max - min) + min; %7D const s = document.querySelectorAll('circle'); function l() %7B for (let i = 0; i &lt; s.length; i++) %7B let f = s%5Bi%5D; f.setAttribute('cx', r(1, 100) + '%25'); f.setAttribute('cy', '-' + r(1, 100)); f.setAttribute('r', r(1, 3)); %7D %7D l();%3C/script%3E%3C/svg%3E")`
*/
);
CSS 文本特效
不使用 SVG 或类似的东西，也能创建一些漂亮的控制台信息。例如，你可以应用多个文本阴影来实现 3D 文本效果：
console.info(
'%c你好，code 秘密花园',
/*
* 提示：该行代码过长，系统自动注释不进行高亮。一键复制会移除系统注释
* `color:white;font-size:40px;line-height:300px;text-shadow:-1px -1px red, 1px 1px #ff1700, 3px 2px #ff2e00, 5px 3px orangered, 7px 4px #ff5c00, 9px 5px #ff7300, 11px 6px #ff8a00, 13px 7px #ffa100, 14px 8px #ffb800, 16px 9px #ffcf00, 18px 10px #ffe600, 20px 11px #fffc00, 22px 12px #ebff00, 23px 13px #d4ff00, 25px 14px #bdff00, 27px 15px #a6ff00, 28px 16px #8fff00, 30px 17px #78ff00, 32px 18px #61ff00, 33px 19px #4aff00, 35px 20px #33ff00, 36px 21px #1cff00, 38px 22px #05ff00, 39px 23px #00ff12, 41px 24px #00ff29, 42px 25px #00ff40, 43px 26px #00ff57, 45px 27px #00ff6e, 46px 28px #00ff85, 47px 29px #00ff9c, 48px 30px #00ffb3, 49px 31px #00ffc9, 50px 32px #00ffe0, 51px 33px #00fff7, 52px 34px #00f0ff, 53px 35px #00d9ff, 54px 36px #00c2ff, 55px 37px #00abff, 55px 38px #0094ff, 56px 39px #007dff, 57px 40px #0066ff, 57px 41px #004fff, 58px 42px #0038ff, 58px 43px #0021ff, 58px 44px #000aff, 59px 45px #0d00ff, 59px 46px #2400ff, 59px 47px #3b00ff, 59px 48px #5200ff, 59px 49px #6900ff, 60px 50px #8000ff, 59px 51px #9600ff, 59px 52px #ad00ff, 59px 53px #c400ff, 59px 54px #db00ff, 59px 55px #f200ff, 58px 56px #ff00f5, 58px 57px #ff00de, 58px 58px #ff00c7, 57px 59px #ff00b0, 57px 60px #ff0099, 56px 61px #ff0082, 55px 62px #ff006b, 55px 63px #ff0054, 54px 64px #ff003d, 53px 65px #ff0026, 52px 66px #ff000f, 51px 67px #ff0800, 50px 68px #ff1f00, 49px 69px #ff3600, 48px 70px #ff4d00, 47px 71px #ff6300, 46px 72px #ff7a00, 45px 73px #ff9100, 43px 74px #ffa800, 42px 75px #ffbf00, 41px 76px #ffd600, 39px 77px #ffed00, 38px 78px #faff00, 36px 79px #e3ff00, 35px 80px #ccff00, 33px 81px #b5ff00, 32px 82px #9eff00, 30px 83px #87ff00, 28px 84px #70ff00, 27px 85px #59ff00, 25px 86px #42ff00, 23px 87px #2bff00, 22px 88px #14ff00, 20px 89px #00ff03, 18px 90px #00ff1a, 16px 91px #00ff30, 14px 92px #00ff47, 13px 93px #00ff5e, 11px 94px #00ff75, 9px 95px #00ff8c, 7px 96px #00ffa3, 5px 97px #00ffba, 3px 98px #00ffd1, 1px 99px #00ffe8, 7px 100px cyan, -1px 101px #00e8ff, -3px 102px #00d1ff, -5px 103px #00baff, -7px 104px #00a3ff, -9px 105px #008cff, -11px 106px #0075ff, -13px 107px #005eff, -14px 108px #0047ff, -16px 109px #0030ff, -18px 110px #001aff, -20px 111px #0003ff, -22px 112px #1400ff, -23px 113px #2b00ff, -25px 114px #4200ff, -27px 115px #5900ff, -28px 116px #7000ff, -30px 117px #8700ff, -32px 118px #9e00ff, -33px 119px #b500ff, -35px 120px #cc00ff, -36px 121px #e300ff, -38px 122px #fa00ff, -39px 123px #ff00ed, -41px 124px #ff00d6, -42px 125px #ff00bf, -43px 126px #ff00a8, -45px 127px #ff0091, -46px 128px #ff007a, -47px 129px #ff0063, -48px 130px #ff004d, -49px 131px #ff0036, -50px 132px #ff001f, -51px 133px #ff0008, -52px 134px #ff0f00, -53px 135px #ff2600, -54px 136px #ff3d00, -55px 137px #ff5400, -55px 138px #ff6b00, -56px 139px #ff8200, -57px 140px #ff9900, -57px 141px #ffb000, -58px 142px #ffc700, -58px 143px #ffde00, -58px 144px #fff500, -59px 145px #f2ff00, -59px 146px #dbff00, -59px 147px #c4ff00, -59px 148px #adff00, -59px 149px #96ff00, -60px 150px #80ff00, -59px 151px #69ff00, -59px 152px #52ff00, -59px 153px #3bff00, -59px 154px #24ff00, -59px 155px #0dff00, -58px 156px #00ff0a, -58px 157px #00ff21, -58px 158px #00ff38, -57px 159px #00ff4f, -57px 160px #00ff66, -56px 161px #00ff7d, -55px 162px #00ff94, -55px 163px #00ffab, -54px 164px #00ffc2, -53px 165px #00ffd9, -52px 166px #00fff0, -51px 167px #00f7ff, -50px 168px #00e0ff, -49px 169px #00c9ff, -48px 170px #00b3ff, -47px 171px #009cff, -46px 172px #0085ff, -45px 173px #006eff, -43px 174px #0057ff, -42px 175px #0040ff, -41px 176px #0029ff, -39px 177px #0012ff, -38px 178px #0500ff, -36px 179px #1c00ff, -35px 180px #3300ff, -33px 181px #4a00ff, -32px 182px #6100ff, -30px 183px #7800ff, -28px 184px #8f00ff, -27px 185px #a600ff, -25px 186px #bd00ff, -23px 187px #d400ff, -22px 188px #eb00ff, -20px 189px #ff00fc, -18px 190px #ff00e6, -16px 191px #ff00cf, -14px 192px #ff00b8, -13px 193px #ff00a1, -11px 194px #ff008a, -9px 195px #ff0073, -7px 196px #ff005c, -5px 197px #ff0045, -3px 198px #ff002e, -1px 199px #ff0017, -1px 200px red, 1px 201px #ff1700, 3px 202px #ff2e00, 5px 203px orangered, 7px 204px #ff5c00, 9px 205px #ff7300, 11px 206px #ff8a00, 13px 207px #ffa100, 14px 208px #ffb800, 16px 209px #ffcf00, 18px 210px #ffe600, 20px 211px #fffc00, 22px 212px #ebff00, 23px 213px #d4ff00, 25px 214px #bdff00, 27px 215px #a6ff00, 28px 216px #8fff00, 30px 217px #78ff00, 32px 218px #61ff00, 33px 219px #4aff00, 35px 220px #33ff00, 36px 221px #1cff00, 38px 222px #05ff00, 39px 223px #00ff12, 41px 224px #00ff29, 42px 225px #00ff40, 43px 226px #00ff57, 45px 227px #00ff6e, 46px 228px #00ff85, 47px 229px #00ff9c, 48px 230px #00ffb3, 49px 231px #00ffc9, 50px 232px #00ffe0, 51px 233px #00fff7, 52px 234px #00f0ff, 53px 235px #00d9ff, 54px 236px #00c2ff, 55px 237px #00abff, 55px 238px #0094ff, 56px 239px #007dff, 57px 240px #0066ff, 57px 241px #004fff, 58px 242px #0038ff, 58px 243px #0021ff, 58px 244px #000aff, 59px 245px #0d00ff, 59px 246px #2400ff, 59px 247px #3b00ff, 59px 248px #5200ff, 59px 249px #6900ff, 60px 250px #8000ff, 59px 251px #9600ff, 59px 252px #ad00ff, 59px 253px #c400ff, 59px 254px #db00ff, 59px 255px #f200ff, 58px 256px #ff00f5, 58px 257px #ff00de, 58px 258px #ff00c7, 57px 259px #ff00b0, 57px 260px #ff0099, 56px 261px #ff0082, 55px 262px #ff006b, 55px 263px #ff0054, 54px 264px #ff003d, 53px 265px #ff0026, 52px 266px #ff000f, 51px 267px #ff0800, 50px 268px #ff1f00, 49px 269px #ff3600, 48px 270px #ff4d00, 47px 271px #ff6300, 46px 272px #ff7a00, 45px 273px #ff9100, 43px 274px #ffa800, 42px 275px #ffbf00, 41px 276px #ffd600, 39px 277px #ffed00, 38px 278px #faff00, 36px 279px #e3ff00, 35px 280px #ccff00, 33px 281px #b5ff00, 32px 282px #9eff00, 30px 283px #87ff00, 28px 284px #70ff00, 27px 285px #59ff00, 25px 286px #42ff00, 23px 287px #2bff00, 22px 288px #14ff00, 20px 289px #00ff03, 18px 290px #00ff1a, 16px 291px #00ff30, 14px 292px #00ff47, 13px 293px #00ff5e, 11px 294px #00ff75, 9px 295px #00ff8c, 7px 296px #00ffa3, 5px 297px #00ffba, 3px 298px #00ffd1, 1px 299px #00ffe8, 2px 300px cyan, -1px 301px #00e8ff, -3px 302px #00d1ff, -5px 303px #00baff, -7px 304px #00a3ff, -9px 305px #008cff, -11px 306px #0075ff, -13px 307px #005eff, -14px 308px #0047ff, -16px 309px #0030ff, -18px 310px #001aff, -20px 311px #0003ff, -22px 312px #1400ff, -23px 313px #2b00ff, -25px 314px #4200ff, -27px 315px #5900ff, -28px 316px #7000ff, -30px 317px #8700ff, -32px 318px #9e00ff, -33px 319px #b500ff, -35px 320px #cc00ff, -36px 321px #e300ff, -38px 322px #fa00ff, -39px 323px #ff00ed, -41px 324px #ff00d6, -42px 325px #ff00bf, -43px 326px #ff00a8, -45px 327px #ff0091, -46px 328px #ff007a, -47px 329px #ff0063, -48px 330px #ff004d, -49px 331px #ff0036, -50px 332px #ff001f, -51px 333px #ff0008, -52px 334px #ff0f00, -53px 335px #ff2600, -54px 336px #ff3d00, -55px 337px #ff5400, -55px 338px #ff6b00, -56px 339px #ff8200, -57px 340px #ff9900, -57px 341px #ffb000, -58px 342px #ffc700, -58px 343px #ffde00, -58px 344px #fff500, -59px 345px #f2ff00, -59px 346px #dbff00, -59px 347px #c4ff00, -59px 348px #adff00, -59px 349px #96ff00, -60px 350px #80ff00, -59px 351px #69ff00, -59px 352px #52ff00, -59px 353px #3bff00, -59px 354px #24ff00, -59px 355px #0dff00, -58px 356px #00ff0a, -58px 357px #00ff21, -58px 358px #00ff38, -57px 359px #00ff4f, -57px 360px #00ff66, -56px 361px #00ff7d, -55px 362px #00ff94, -55px 363px #00ffab, -54px 364px #00ffc2, -53px 365px #00ffd9, -52px 366px #00fff0, -51px 367px #00f7ff, -50px 368px #00e0ff, -49px 369px #00c9ff, -48px 370px #00b3ff, -47px 371px #009cff, -46px 372px #0085ff, -45px 373px #006eff, -43px 374px #0057ff, -42px 375px #0040ff, -41px 376px #0029ff, -39px 377px #0012ff, -38px 378px #0500ff, -36px 379px #1c00ff, -35px 380px #3300ff, -33px 381px #4a00ff, -32px 382px #6100ff, -30px 383px #7800ff, -28px 384px #8f00ff, -27px 385px #a600ff, -25px 386px #bd00ff, -23px 387px #d400ff, -22px 388px #eb00ff, -20px 389px #ff00fc, -18px 390px #ff00e6, -16px 391px #ff00cf, -14px 392px #ff00b8, -13px 393px #ff00a1, -11px 394px #ff008a, -9px 395px #ff0073, -7px 396px #ff005c, -5px 397px #ff0045, -3px 398px #ff002e, -1px 399px #ff0017`
*/
);
JavaScript 代码
下面的示例展示了如何使用 JavaScript 切换 SVG 的文本（使用 .textContent 而不是 .innerText，因为它是一个 SVG 元素）。话虽如此，由于在使用 setInterval 和 requestAnimationFrame 方面存在限制，我们无法实现类似于乱序文本效果的操作。
console.info(
'%c ',
`line-height:100px;padding-block:50px;padding-left:400px;background-repeat:no-repeat;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 400 100'%3E%3Cstyle%3E text %7B font-family: sans-serif; font-weight: 100; fill: %23d8eaff; %7D %3C/style%3E%3Crect width='400' height='100'%3E%3C/rect%3E%3Ctext text-anchor='middle' font-size='15' x='200' y='50'%3ESaturday, December 16, 2023 at 6:28 PM%3C/text%3E%3Cscript%3E const text_element = document.querySelector('text'); text_element.textContent = new Date().toLocaleString(true, %7B weekday: 'long', year: 'numeric', month: 'long', day: 'numeric', hour: 'numeric', minute: 'numeric' %7D); %3C/script%3E%3C/svg%3E")`
);
如果我们使用 SVG 和 CSS 动画，我们可以在启动后交换文本（或任何元素）！要实现这一点，我们需要在原始的 SVG 中包含内容，并使用 CSS 关键帧。
console.info(
'%c ',
`line-height:100px;padding-block:50px;padding-left:400px;background-repeat:no-repeat;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 400 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cstyle%3E @keyframes swapText %7B 0%25, 49.999%25 %7B opacity: 0; %7D 50%25, 100%25 %7B opacity: 1; %7D %7D text %7B animation: swapText 2s linear infinite; %7D text:nth-child(2) %7B animation-delay: 1s; %7D @media (prefers-color-scheme: dark) %7B text %7B fill: white; %7D %7D %3C/style%3E%3Ctext text-anchor='middle' font-size='15' x='200' y='50'%3E 你好 %3C/text%3E%3Ctext text-anchor='middle' font-size='15' x='200' y='50'%3E code秘密花园 %3C/text%3E%3C/svg%3E")`
);
ASCII 的艺术
控制台中的 ASCII 艺术是一个被更多探索的类似效果。例如，相当著名的 Reddit console.log 艺术/广告：
console.log(
`%c
,d"=≥,.,qOp,
,7' ''²$( )
,7' '?q$7'
..,$$,.
,. .,,--***²""²***--,,. .,
² ,p²'' ''²q, ²
: ,7' '7, :
' $ ,db, ,db, $ '
'$ ²$$² ²$$² $' Using Reddit at work? Work for Reddit.
'$ $' https://www.redditinc.com/careers
'$. ., ,. .$'
'b, '²«»«»«»²' ,d'
'²?bn,, ,,nd?²'
,7$ ''²²²²²²²²'' $7,
,² ²$ $² ²,
$ :$ $: $
$ $ $ $
'b q: :p d'
'²«?$. .$?»²'
'b d'
,²²'?,. .,?'²²,
²==--≥²²==--==²²≤--==²
`,
`font-family: monospace`
);
注意 font-family: monospace 的使用，以确保字符具有一致的宽度。如果您正在寻找一些工具来生成 ASCII 图形，可以看看：ASCII Art Archive（https://www.asciiart.eu/）。
在设计中包含链接
我们没办法在用作背景图像的 SVG 中添加单击事件或链接。但是，如果你愿意显示完整的 URL，则可以通过使用精心选择的属性将控制台消息中的 URL 放置在你希望它相对于背景图像的位置来伪造它。可能还需要更改所使用的字体族，以便更紧密地匹配所使用的 SVG 。
请记住，URL 本身会影响元素的宽度，因此你可能需要调整 SVG 。此外，请确保在不同浏览器之间进行彻底的测试，因为这种技术在不同浏览器之间存在更多的不一致性。
console.info(
'%chttps://conardli.top/',
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);
检测控制台是否打开
像上面的线条绘制动画的第一半那样的渲染动画是使用这种技术进行动画化的一种方式。然而，这些动画可能在有人实际打开控制台之前就会结束。因此，我想知道我们是否可以检测到控制台何时打开，以便我们可以等到那时再触发动画。
据我所知，目前没有办法检测控制台是否打开。然而，有一些方法可以检测开发者工具是否打开，尽管方法似乎每隔一段时间就会更改。
我使用了 devtools-detect 这个轻量级的包成功地在一个项目中实现了这种设置。然而，这个包有很多已知问题，作者在 README 中有提到。但是对于这种多余的用途来说，可能是可以接受的。如果你真的想要做到这一点，我可能会推荐使用 detect-devtools-via-debugger-heartstop，因为它看起来更可靠一点，但我没有亲自测试过。
性能影响
为了了解性能影响，我尝试运行了一个非常复杂的动画（https://codepen.io/CyrilLevallois/pen/eYBKKM），并查看了我的活动监视器。
当控制台打开且动画正在运行时，我的 2018 款 Macbook Pro 上的 “Google Chrome Helper (GPU)” 的占用率达到了大约 80%。当打开其他 devtools 标签或关闭 devtools 时，我无法看到任何可测量的影响。
所以，除非有人打开了他们的 devtools 控制台，否则这种效果不会对页面产生太大影响。
话虽如此，最好你们也自己测试一下，包括在更广泛的设备上进行测试，以确保它不会对任何用户的体验产生不利影响。
一些工具推荐
- 控制台测试 CodePen：可以自动为你生成这些
console.info！将SVG粘贴到笔的HTML部分，运行它，然后打开控制台。控制台将向你显示消息的呈现方式以及用于生成消息的代码。 - https://codepen.io/ZachSaucier/pen/GRzypKq
- 矢量编辑器 – 使用上面的
CodePen，你可以粘贴几乎任何SVG并获得有效的控制台命令。这意味着你可以使用Inkscape、Adobe Illustator或任何其他你想要用来生成SVG的工具！ css-doodle可以用于创建在控制台中使用的SVG。- https://css-doodle.com/
SVGOMG压缩SVG以减小文件大小。这也可以帮助你尝试适应Firefox的字符限制。- https://jakearchibald.github.io/svgomg/
EZGIF用于将常规图像转换为数据URI。- https://ezgif.com/image-to-datauri/ezgif-4-975be6affc.jpg
最后
大家觉得哪个效果最酷炫？欢迎在评论区留言～
本文参考：
- https://stackoverflow.com/q/7798748/2065702
- https://codepen.io/lorryc/pen/pjwEJK
- https://frontendmasters.com/blog/console-delight/
- https://codepen.io/acarlie/pen/eYmqEVB
- https://gist.github.com/ZachSaucier/ea8ebf65079febbde4f2f9190ae6644a
- https://github.com/david-fong/detect-devtools-via-debugger-heartstop