Chrome 控制台新玩法-向输出到console的文字加样式
有兴趣的同学可以文章最后的代码复制贴到控制台玩玩。
在正常模式下,一般只能向console 控制台输出简单的文字信息。但为了把信息输出得更优雅更便于阅读,除了cosole.log()方法外还可以调用 cosole.warn() 来输出警告信息,在控制台中出来的效果如下:
在输出信息前面会有一个带感叹号的黄色三角警告符号。似乎比一般的console信息要友好得多了。虽然图标是黄色的,但输出的文字仍然是黑色。
另外经常用到的是输出错误信息。可以通过调用console.erro() 来实现。
输出的效果如下:
信息前面会出现一个带叉的红色圆形图标。
这个效果要比警告信息更友好了,字体颜色成红色了。
要更牛叉莫过于对文字应用样式。而现在这一特性已经在谷歌浏览器里实现了。
在Chrome的开发者工具里,console 可以加样式,可以显示缤纷的颜色,甚至图片。简直爽翻了。
具体来说,是可以对输出到console控制台的文字进行CSS控制。
格式如下:
console.log("%c需要输出的信息 ", "css 代码");
下面是console.log() API的官方文档摘要。
谷歌开发者中心上面关于谷歌浏览器控制台console.log()的文档:
Format Specifier
Description
%s
Formats the value as a string.
%d or %i
Formats the value as an integer.
%f
Formats the value as a floating point value.
%o
Formats the value as an expandable DOM element (as in the Elements panel).
%O
Formats the value as an expandable JavaScript object.
%c
Formats the output string according to CSS styles you provide.
1.3D Text:
console.log("%c3D Text"," text-shadow: 0 1px 0 #ccc,0 2px 0 #c9c9c9,0 3px 0 #bbb,0 4px 0 #b9b9b9,0 5px 0 #aaa,0 6px 1px rgba(0,0,0,.1),0 0 5px rgba(0,0,0,.1),0 1px 3px rgba(0,0,0,.3),0 3px 5px rgba(0,0,0,.2),0 5px 10px rgba(0,0,0,.25),0 10px 10px rgba(0,0,0,.2),0 20px 20px rgba(0,0,0,.15);font-size:5em")
2.Colorful CSS
console.log("%cColorful CSS","background: rgba(252,234,187,1);background: -moz-linear-gradient(left, rgba(252,234,187,1) 0%, rgba(175,250,77,1) 12%, rgba(0,247,49,1) 28%, rgba(0,210,247,1) 39%,rgba(0,189,247,1) 51%, rgba(133,108,217,1) 64%, rgba(177,0,247,1) 78%, rgba(247,0,189,1) 87%, rgba(245,22,52,1) 100%);background: -webkit-gradient(left top, right top, color-stop(0%, rgba(252,234,187,1)), color-stop(12%, rgba(175,250,77,1)), color-stop(28%, rgba(0,247,49,1)), color-stop(39%, rgba(0,210,247,1)), color-stop(51%, rgba(0,189,247,1)), color-stop(64%, rgba(133,108,217,1)), color-stop(78%, rgba(177,0,247,1)), color-stop(87%, rgba(247,0,189,1)), color-stop(100%, rgba(245,22,52,1)));background: -webkit-linear-gradient(left, rgba(252,234,187,1) 0%, rgba(175,250,77,1) 12%, rgba(0,247,49,1) 28%, rgba(0,210,247,1) 39%, rgba(0,189,247,1) 51%, rgba(133,108,217,1) 64%, rgba(177,0,247,1) 78%, rgba(247,0,189,1) 87%, rgba(245,22,52,1) 100%);background: -o-linear-gradient(left, rgba(252,234,187,1) 0%, rgba(175,250,77,1) 12%, rgba(0,247,49,1) 28%, rgba(0,210,247,1) 39%, rgba(0,189,247,1) 51%, rgba(133,108,217,1) 64%, rgba(177,0,247,1) 78%, rgba(247,0,189,1) 87%, rgba(245,22,52,1) 100%);background: -ms-linear-gradient(left, rgba(252,234,187,1) 0%, rgba(175,250,77,1) 12%, rgba(0,247,49,1) 28%, rgba(0,210,247,1) 39%, rgba(0,189,247,1) 51%, rgba(133,108,217,1) 64%, rgba(177,0,247,1) 78%, rgba(247,0,189,1) 87%, rgba(245,22,52,1) 100%);background: linear-gradient(to right, rgba(252,234,187,1) 0%, rgba(175,250,77,1) 12%, rgba(0,247,49,1) 28%, rgba(0,210,247,1) 39%, rgba(0,189,247,1) 51%, rgba(133,108,217,1) 64%, rgba(177,0,247,1) 78%, rgba(247,0,189,1) 87%, rgba(245,22,52,1) 100%);filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#fceabb', endColorstr='#f51634', GradientType=1 );font-size:5em")
3.Rainbow Text
console.log('%cRainbow Text ', 'background-image:-webkit-gradient( linear, left top, right top, color-stop(0, #f22), color-stop(0.15, #f2f), color-stop(0.3, #22f), color-stop(0.45, #2ff), color-stop(0.6, #2f2),color-stop(0.75, #2f2), color-stop(0.9, #ff2), color-stop(1, #f22) );color:transparent;-webkit-background-clip: text;font-size:5em;');
行到水穷处,坐看云起时
分类: 【JavaScript】
云纹地址:http://www.cnblogs.com/Wayou/p/chrome_dev_tool_style_console.html