isDate_.isDate(object) Returns true if object is a Date.

debounce_.debounce(function, wait, [immediate]) Creates and returns a new debounced version of the passed function which will postpone

lastIndexOf_.lastIndexOf(array, value, [fromIndex]) Returns the index of the last occurrence of value in the array

escape_.escape(string) Escapes a string for insertion into HTML, replacing &, <, >, "

findKey_.findKey(object, predicate, [context]) Similar to _

create_.create(prototype, props) Creates a new object with the given prototype, optionally attaching props as own properties

tap_.tap(object, interceptor) Invokes interceptor with the object, and then returns object. The primary purpose

isObject_.isObject(value) Returns true if value is an Object. Note that JavaScript arrays and functions are objects

partial_.partial(function, *arguments) Partially apply a function by filling in any number of its arguments, without

mixin_.mixin(object) Allows you to extend Underscore with your own utility functions. Pass a hash of {name: function} definitions