Underscore.JS chain方法

_.chain(object)

var _ = require('underscore');

var students = [{name: 'Sam', age: 10},{name: 'Joe', age: 8},{name: 'Rob', age: 12}]

//Get the highest aged student using chain method
var eldest = _.chain(students)
   .sortBy(function(student){return student.age;})
   .map(function(student){return "Name: " + student.name + ", age: " + student.age;})
   .last()
   .value();

console.log(eldest);

>node tester.js

Name: Rob, age: 12