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Jingdong book

Scala学习手册

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Scala学习手册

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Brand Jingdong book
Brand Origin China

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Editer Recommend

为什么学习Scala?你无需成为数据科学家或分布式计算专家,也能掌握这种面向对象函数式编程语言。这是一本很实用的书,它以通俗易懂的方式对Scala语言做了全面的介绍,还给出了大量语法图、示例和练习来帮助你理解书中的内容。首先你将了解Scala的核心类型和语法,然后会深入学习高阶函数和不可变的数据结构。
本书作者在书中介绍了Scala简洁而且很有表述性的语法,解释了它的类型安全性和性能可以确保稳定性,另外说明了Scala可以快速运行,适用所有应用。基于这些特点,作者展示了为什么Scala会成为想要提高水平的Ruby或Python开发人员的理想语言。

Content Description

学习核心数据类型、字面量、值和变量。
了解如何使用表达式(Scaa语法的基础)思考以及编写代码。
编写接收或返回其他函数的高阶函数。
熟悉不可变数据结构,利用类型安全的描述性操作轻松地完成变换。
创建定制的中缀操作符简化现有操作,甚至可以针对你自己的领域编写特定的语言。
构建包括一个或多个trait的类来提供充分的可重用性,或者在实例化时混合使用trait创建新功能。
Author Description

Jason Swartz,是一位软件工程师,热衷于直观的用户界面、表述性编程语言和简洁的用户文档。他还组织了旧金山的很多Scala社区活动,并为Netflix的客户设备程序开发过应用。
Comments

“不论你是有Python经验还是更熟悉Java,你都会发现这本书对Scala的介绍非常适用。Jason的文字很实用,而且通俗易懂。本书提供了一个简洁明了的初学者指南,涵盖了我们熟悉的面向对象风格和这个语言的常用特性。我开始学Scala时就希望有这样一本书!”
——Katherine Fellows
Comcast公司软件工程师
Catalogue

前言 1
第一部分 Scala核心
第1章 可扩展语言概述 11
安装Scala 11
使用Scala REPL 12
小结 14
练习 14

第2章 处理数据: 字面量、 值、 变量和类型 16
值18
变量 19
命名 20
类型 22
小结 33
练习 33

第3章 表达式和条件式 34
表达式 34
if...else表达式块 36
匹配表达式38
循环 44
小结 48
练习 49

第4章 函数 51
过程 54
用空括号定义函数54
使用表达式块调用函数 55
递归函数 56
嵌套函数 58
用命名参数调用函数58
有默认值的参数 59
Vararg参数60
参数组 60
类型参数 61
方法和操作符 63
编写可读的函数 66
小结 68
练习 68

第5章 首类函数 70
函数类型和值 71
高阶函数 73
函数字面量74
占位符语法77
部分应用函数和柯里化 78
传名参数 80
偏函数 81
用函数字面量块调用高阶函数 82
小结 85
练习 85

第6章 常用集合 87
列表、 集和映射 87
List里有什么? 90
列表算术运算 94
映射列表 96
归约列表 97
转换集合 102
使用集合的模式匹配103
小结 105
练习 106

第7章 更多集合 109
可变集合 109
数组 113
Seq和序列 115
Stream 116
一元集合 118
小结 131
练习 132

第二部分 面向对象Scala
第8章 类 139
定义类 143
更多类类型148
更多字段和方法类型150
包装 153
私密性控制159
私密性访问修饰符161
最终类和密封类 162
小结 163
练习 163

第9章 对象、 Case类和Trait 167
对象 167
Trait 175
导入实例成员 183
小结 184
中场休息——配置你的第一个Scala项目185
练习 190

第10章 高级类型 197
元组和函数值类 199
隐含参数 201
隐含类 202
类型 204
小结 213
思考题 214
附录A 保留字 217

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