You have a collection of related functions that can be utilised through a simple interface.
var getPostsFromDataSource = function() {
// Fetch posts from data source
};
var logPosts = function(posts) {
// Log each post to console
};
var mapPosts = function(posts) {
// Map each post to a model
};
var getPosts = function() {
var posts = getPostsFromDataSource();
posts = mapPosts(posts);
logPosts(posts);
return posts;
};
var posts = getPosts();Encapsulate the functions in a new function and return a fine-grained interface for clients.
var postsModule = function() {
var getPostsFromDataSource = function() {
// Fetch posts from data source
};
var logPosts = function(posts) {
// Log each post to console
};
var mapPosts = function(posts) {
// Map each post to a model
};
var getPosts = function() {
var posts = getPostsFromDataSource();
posts = mapPosts(posts);
logPosts(posts);
return posts;
};
return {
getPosts: getPosts
};
}();
var posts = postsModule.getPosts();