var _ = require('underscore');
var list = [{name: 'Sam', age: 10}, {name: 'Joe', age: 12}, {name: 'Rob', age: 15}]
//Example 1. invoke min method to get youngest student
var result = _.min(list, function(list){ return list.age});
console.log(result);
list = [1, 4, 6, 3, 7, 9]
//Example 2. invoke min method to get maximum number
result = _.min(list)
console.log(result)