正在加载...
正在加载...
ID
Title
Author
Genre
Page count
Publisher ID
ISBN
checkoutDate
checkoutMember
dueReturnDate
availability
var Book = function( id, title, author, genre, pageCount,publisherID, ISBN, checkoutDate, checkoutMember, dueReturnDate,availability ){
this.id = id;
this.title = title;
this.author = author;
this.genre = genre;
this.pageCount = pageCount;
this.publisherID = publisherID;
this.ISBN = ISBN;
this.checkoutDate = checkoutDate;
this.checkoutMember = checkoutMember;
this.dueReturnDate = dueReturnDate;
this.availability = availability;
};
Book.prototype = {
getTitle:function(){
return this.title;
},
getAuthor: function(){
return this.author;
},
getISBN: function(){
return this.ISBN;
},
/*其它get方法在这里就不显示了*/
// 更新借出状态
updateCheckoutStatus: function(bookID, newStatus, checkoutDate,checkoutMember, newReturnDate){
this.id = bookID;
this.availability = newStatus;
this.checkoutDate = checkoutDate;
this.checkoutMember = checkoutMember;
this.dueReturnDate = newReturnDate;
},
//续借
extendCheckoutPeriod: function(bookID, newReturnDate){
this.id = bookID;
this.dueReturnDate = newReturnDate;
},
//是否到期
isPastDue: function(bookID){
var currentDate = new Date();
return currentDate.getTime() > Date.parse(this.dueReturnDate);
}
};
/*享元模式优化代码*/
var Book = function(title, author, genre, pageCount, publisherID, ISBN){
this.title = title;
this.author = author;
this.genre = genre;
this.pageCount = pageCount;
this.publisherID = publisherID;
this.ISBN = ISBN;
};
/* Book工厂 单例 */
var BookFactory = (function(){
var existingBooks = {};
return{
createBook: function(title, author, genre,pageCount,publisherID,ISBN){
/*查找之前是否创建*/
var existingBook = existingBooks[ISBN];
if(existingBook){
return existingBook;
}else{
/* 如果没有，就创建一个，然后保存*/
var book = new Book(title, author, genre,pageCount,publisherID,ISBN);
existingBooks[ISBN] = book;
return book;
}
}
}
});
/*BookRecordManager 借书管理类 单例*/
var BookRecordManager = (function(){
var bookRecordDatabase = {};
return{
/*添加借书记录*/
addBookRecord: function(id, title, author, genre,pageCount,publisherID,ISBN, checkoutDate, checkoutMember, dueReturnDate, availability){
var book = bookFactory.createBook(title, author, genre,pageCount,publisherID,ISBN);
bookRecordDatabase[id] ={
checkoutMember: checkoutMember,
checkoutDate: checkoutDate,
dueReturnDate: dueReturnDate,
availability: availability,
book: book;
};
},
updateCheckoutStatus: function(bookID, newStatus, checkoutDate, checkoutMember, newReturnDate){
var record = bookRecordDatabase[bookID];
record.availability = newStatus;
record.checkoutDate = checkoutDate;
record.checkoutMember = checkoutMember;
record.dueReturnDate = newReturnDate;
},
extendCheckoutPeriod: function(bookID, newReturnDate){
bookRecordDatabase[bookID].dueReturnDate = newReturnDate;
},
isPastDue: function(bookID){
var currentDate = new Date();
return currentDate.getTime() > Date.parse(bookRecordDatabase[bookID].dueReturnDate);
}
};
});
<div id="container">
<div class="toggle" href="#">更多信息 (地址)
<span class="info">
这里是更多信息
</span></div>
<div class="toggle" href="#">更多信息 (地图)
<span class="info">
<iframe src="http://www.map-generator.net/extmap.php?name=London&address=london%2C%20england&width=500...gt;"</iframe>
</span>
</div>
</div>
stateManager = {
fly: function(){
var self = this;
$('#container').unbind().bind("click", function(e){
var target = $(e.originalTarget || e.srcElement);
// 判断是哪一个子元素
if(target.is("div.toggle")){
self.handleClick(target);
}
});
},
handleClick: function(elem){
elem.find('span').toggle('slow');
}
});$('div').bind('click', function(){
console.log('You clicked: ' + $(this).attr('id'));
});
// 上面的代码，要避免使用，避免再次对DOM元素进行生成jQuery对象，因为这里可以直接使用DOM元素自身了。
$('div').bind('click', function(){
console.log('You clicked: ' + this.id);
});jQuery.single = (function(o){
var collection = jQuery([1]);
return function(element) {
// 将元素放到集合里
collection[0] = element;
// 返回集合
return collection;
};
});
$('div').bind('click', function(){
var html = jQuery.single(this).next().html();
console.log(html);
});