Underscore提供的60多个函数:
http://www.css88.com/doc/underscore/
Collections(集合)
each, map, reduce, reduceRight, find, filter, reject, all, any, include, invoke,pluck, max, min, sortBy, groupBy, sortedIndex, shuffle, toArray, size
Arrays(数组)
first, initial, last, rest, compact, flatten, without, union, intersection,difference, uniq, zip, indexOf, lastIndexOf, range
Functions(函数)
bind, bindAll, memoize, delay, defer, throttle, debounce, once, after, wrap,compose
Objects(对象)
keys, values, functions, extend, defaults, clone, tap, isEqual, isEmpty,isElement, isArray, isArguments, isFunction, isString, isNumber, isBoolean,isDate, isRegExp, isNaN, isNull, isUndefined
Utility(功能)
noConflict, identity, times, mixin, uniqueId, escape, template
Chaining
chain, value