Using reduce to find the smallest/largest number reduce_.reduce(list, iterator, memo, [context]) Aliases: inject, foldl Also known as inject and foldl, reduce boils down a list of values into a single value. Memo is the initial state of the reduction, and each successive step of it should be returned by iterator. The iterator is passed four argu…

reduce.js

var smallest = _.reduce([4, 44, 3, 6, 2], function(memo, num){ 
  return memo > num ? num : memo;
});

//2

var largest = _.reduce([4, 44, 3, 6, 2], function(memo, num){ 
  return memo < num ? num : memo;
});

//44

var smallestObject = _.reduce(objectArray, function(memo, obj){ 
 return memo > obj.value ? obj.value : memo;
});