New Array Methods

http://www.zhangxinxu.com/wordpress/2013/04/es5%e6%96%b0%e5%a2%9e%e6%95%b0%e7%bb%84%e6%96%b9%e6%b3%95/

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Origin www.cnblogs.com/wlhappy92/p/arrayfunc.html