本文实例讲述了JS匿名函数类生成方式。分享给大家供大家参考，具体如下：
<script type="text/javascript">
var Book = (function() {
// 私有静态属性
var numOfBooks = 0;
// 私有静态方法
function checkIsbn(isbn) {
if(isbn == undefined || typeof isbn != 'string') {
return false;
}
return true;
}
// 返回构造函数
return function(newIsbn, newTitle, newAuthor) { // implements Publication
// 私有属性
var isbn, title, author;
// 特权方法
this.getIsbn = function() {
return isbn;
};
this.setIsbn = function(newIsbn) {
if(!checkIsbn(newIsbn)) throw new Error('Book: Invalid ISBN.');
isbn = newIsbn;
};
this.getTitle = function() {
return title;
};
this.setTitle = function(newTitle) {
title = newTitle || 'No title specified';
};
this.getAuthor = function() {
return author;
};
this.setAuthor = function(newAuthor) {
author = newAuthor || 'No author specified';
};
// 控制对象数目，构造函数
numOfBooks++; // Keep track of how many Books have been instantiated
// with the private static attribute.
if(numOfBooks > 5) throw new Error('Book: Only 5 instances of Book can be '
+ 'created.');
this.setIsbn(newIsbn);
this.setTitle(newTitle);
this.setAuthor(newAuthor);
}
})();
// 公有静态方法
Book.convertToTitleCase = function(inputString) {
alert('convertToTitleCase');
};
// 公有非特权方法
Book.prototype = {
display: function() {
alert("isbn:"+this.getIsbn()+" title:"+this.getTitle()+" author:"+this.getAuthor());
}
};
//var theHobbit = new Book(123, '', 'J. R. R. Tolkein'); // 非字符串抛出异常
var theHobbit = new Book('1990-78sd-1092', '', 'J. R. R. Tolkein');
theHobbit.display();
//theHobbit.convertToTitleCase(); // Uncaught TypeError: Object #<Object> has no method 'convertToTitleCase'
Book.convertToTitleCase(); // 输出convertToTitleCase
var theHobbit2 = new Book('1990-78sd-1092', '', 'J. R. R. Tolkein');
theHobbit2.display();
var theHobbit3 = new Book('1990-78sd-1092', '', 'J. R. R. Tolkein');
theHobbit3.display();
var theHobbit4 = new Book('1990-78sd-1092', '', 'J. R. R. Tolkein');
theHobbit4.display();
var theHobbit5 = new Book('1990-78sd-1092', '', 'J. R. R. Tolkein');
theHobbit5.display();
var theHobbit6 = new Book('1990-78sd-1092', '', 'J. R. R. Tolkein');
theHobbit6.display(); // Uncaught Error: Book: Only 5 instances of Book can be created.
</script>
这里已经把js出神入化了，佩服到极致，代码清晰简洁，美观，注释恰到好处。
更多关于JavaScript相关内容可查看本站专题：《JavaScript常用函数技巧汇总》、《javascript面向对象入门教程》、《JavaScript中json操作技巧总结》、《JavaScript切换特效与技巧总结》、《JavaScript查找算法技巧总结》、《JavaScript动画特效与技巧汇总》、《JavaScript错误与调试技巧总结》、《JavaScript数据结构与算法技巧总结》、《JavaScript遍历算法与技巧总结》及《JavaScript数学运算用法总结》
希望本文所述对大家JavaScript程序设计有所帮助。
