SVG在IE9的IE7/IE8兼容模式下不能被正常检测的问题

今天踩到的第二个地雷了。
在IE9的IE7/IE8兼容模式下调用createElementNS(“http://www.w3.org/2000/svg”, “svg”)是会报错的。
调用前需要检测一下:

hasSVG = !!doc.createElementNS && !!doc.createElementNS("http://www.w3.org/2000/svg", "svg").createSVGRect

参考资料:
https://github.com/highslide-software/highcharts.com/issues/189
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String.prototype.split()兼容问题

IE的String.prototype.split()函数bug

脚本:

"a:b:c".split(/(:)/)

Firefox输出:

["a",":","b",":","c"]

IE7/8(含IE9兼容的模式)输出:

a,b,c

详细说明:
http://www.sitepoint.com/the-power-of-stringprototypesplit-almost/
http://blog.stevenlevithan.com/archives/cross-browser-split
http://blog.stchur.com/2007/03/28/split-broken-in-ie/

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