- forEach (js v1.6)
- map (js v1.6)
- filter (js v1.6)
- some (js v1.6)
- every (js v1.6)
- indexOf (js v1.6)
- lastIndexOf (js v1.6)
- reduce (js v1.8)
- reduceRight (js v1.8)
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/
