前言................................................................................................................................xv 第1 章 精华.................................................................................................................. 1 为什么要使用JavaScript .......................................................................................................2 分析JavaScript......................................................................................................................2 一个简单的试验场.................................................................................................................4 第2 章 语法.................................................................................................................. 5 空白.......................................................................................................................................5 标识符...................................................................................................................................6 数字.......................................................................................................................................7 字符串...................................................................................................................................8 语句.....................................................................................................................................10 表达式.................................................................................................................................15 字面量.................................................................................................................................18 函数.....................................................................................................................................19 第3 章 对象................................................................................................................ 20 对象字面量..........................................................................................................................20 检索.....................................................................................................................................21 更新.....................................................................................................................................22 引用.....................................................................................................................................22 原型.....................................................................................................................................22 反射.....................................................................................................................................23 枚举.....................................................................................................................................24 删除.....................................................................................................................................24 减少全局变量污染...............................................................................................................25 第4 章 函数................................................................................................................ 26 函数对象..............................................................................................................................26 函数字面量..........................................................................................................................27 调用.....................................................................................................................................27 参数.....................................................................................................................................30 返回.....................................................................................................................................31 异常.....................................................................................................................................31 扩充类型的功能...................................................................................................................32 递归.....................................................................................................................................33 作用域.................................................................................................................................36 闭包.....................................................................................................................................36 回调.....................................................................................................................................39 模块.....................................................................................................................................40 级联.....................................................................................................................................42 柯里化.................................................................................................................................43 记忆.....................................................................................................................................43 第5 章 继承................................................................................................................. 46 伪类.....................................................................................................................................46 对象说明符..........................................................................................................................49 原型.....................................................................................................................................50 函数化.................................................................................................................................51 部件.....................................................................................................................................55 第6 章 数组................................................................................................................. 57 数组字面量..........................................................................................................................57 长度.....................................................................................................................................58 删除.....................................................................................................................................59 枚举.....................................................................................................................................59 容易混淆的地方...................................................................................................................60 方法.....................................................................................................................................60 指定初始值..........................................................................................................................62 第7 章 正则表达式..................................................................................................... 64 一个例子..............................................................................................................................65 结构.....................................................................................................................................69 元素.....................................................................................................................................71 第8 章 方法................................................................................................................. 77 Array ....................................................................................................................................77 Function ...............................................................................................................................83 Number ................................................................................................................................84 Object...................................................................................................................................85 RegExp ................................................................................................................................86 String....................................................................................................................................88 第9 章 代码风格........................................................................................................ 94 第10 章 优美的特性................................................................................................... 98 附录A 毒瘤............................................................................................................... 101 附录B 糟粕............................................................................................................... 109 附录C JSLint ............................................................................................................. 115 附录D 语法图........................................................................................................... 127 附录E JSON............................................................................................................... 138 索引.............................................................................................................................. 149