dotcloudJS 介绍
dotcloudJS 是一个 JavaScript 的客户端库，可让你通过简单的 API 访问强大的云服务。
示例代码：
// Start synchronizing the "people" collection
var people = dotcloud.sync.synchronize('people');
// Add an observer to be notified of changes in people.
people.observe(function(type, change) {
console.log(people);
});
// Add an item to the people collection
people.push({ firstname: 'John', lastname: 'Doe' });
// You can use other methods from the Array prototype
people.splice(0, 1, { firstname: 'Jane', lastname: 'Doe' });
// Update the person object at the given index
people.at(0, { age: 25 });
// Iterate over the people collection
people.forEach(function(item, idx, people) {
console.log(idx, item);
});