javascript NaN

Posted by bower on September 25, 2011
javascript

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http://joetom.org/masljana/1646 javascript 中有一个值NaN 它是一个怪胎

site de rencontre pour cinГ©phile NaN 的意思是 Not a Number

see here now 但是 typeof NaN  // number 也就是说 NaN是数字类型的 ecma的文档里确实这么写的

https://mummiesclub.co.uk/bilbord/2376

http://inter-actions.fr/bilobrusuy/4879 而且NaN于任何值做 ==, === 比较运算结果都是false

http://www.austincountyems.com/piknik/8882 NaN == NaN //false NaN甚至不等于他自己

citation rencontre ame soeur NaN == true // false

http://www.odtuluden.com/pikachy/3172 NaN == false //false   这家伙不是true也不是false

 

NaN就是NaN 它是数字但不能参加运算。。

 

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