isEqual_.isEqual(object, other) Performs an optimized deep comparison between the two objects, to determine if they should be considered

isMatch_.isMatch(object, properties) Tells you if the keys and values in properties are contained in object.

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

rest_.rest(array, [index]) Alias: tail, drop Returns the rest of the elements in an array

isRegExp_.isRegExp(object) Returns true if object is a RegExp.

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 &, <, >, "

filter_.filter(list, predicate, [context]) Alias: select Looks through each value in the list

uniqueId_.uniqueId([prefix]) Generate a globally-unique id for client-side models or DOM elements that need one. If prefix

constant_.constant(value) Creates a function that returns the same value that is used as the argument of _.constant.