hi everyone i found the result is true when undefined >= or <= any value in flash2004 and flash8. that makes me wonder,the result was undefined in my sense as same as undefined > or < any value. i don't know flash player how get that,it really weird...orz
It's because instead of really comparing if the variable is higher than or equal to the number (for example), it checks if it's lower than the number (it's faster). Since it's not (because it's undefined), it seems to think it's is higher than or equal to the value, thus returning true.
If you're uncertain of whether a variable is undefined or not, you should use isNaN() first.
Zeh
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