易读代码的艺术(影印版)

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  • 版 次:1
  • 页 数:
  • 字 数:
  • 印刷时间:2012年06月01日
  • 开 本:16开
  • 纸 张:胶版纸
  • 包 装:平装
  • 是否套装:否
  • 国际标准书号ISBN:9787564134471
作者:(美)博斯韦尔,(美)富彻 著出版社:东南大学出版社出版时间:2012年06月 
内容简介

     作为程序员,我们经常看到一些充满Bug、让我们头痛不已的丑陋代码。在过去五年中,《易读代码的艺术(影印版)》的作者博斯韦尔(Dustin Boswell)和富彻(Trevor Foucher)分析了许多这样的“糟糕代码”(这些代码有很多是出自于他们自己之手),他们试图厘清为什么这些代码如此糟糕以及如何改进这些代码。他们得出的结论是:你必须写出让他人(这里也包括你自己)花费最少时间能够理解的代码。

目  录
PREFACE CODE SHOULD BE EASY TO UNDERSTAND What Makes Code "Better"? The Fundamental Theorem of Readability Is Smaller Always Better? Does Time-TilI-UndetandinR Conflict with Other Goals? The Hard PartPart One SURFACE-LEVEL IMPROVEMENTS PACKING INFORMATION INTO NAMES Choose Specific Words Auoid Generic Names Like Imp and retual Prefer Concrete Names ouer Abstract Names Attachin9 Extra Information to a Name How Lon.g Should a Name Be? Use Name Formatting to Conuey Meaning Summary NAMES THAT CAN'T BE MISCONSTRUED Example: FilterO Example: Clip(text, length) Prefer rain and max for (Inclusiue) Limits Prefer fit and last for Inelusiue RanRes Prefer herin and end for.lnclusiue/Exclusiue RanRes NaminR Boolea MatchinR Expectatio of Use Example: EualuatinR Multiple Name Candidates Summary AESTHETICS Why Do Aesthetics Matter? BearranRe Line Breaks to Be Coistent and Compact Use Methods to Clean Up IrreRularity Use Column AliRnment When Helpful Pick a MeaninRful Order, and Use It Coistently OrRanize Declaratio into Blocks Break Code into "Parafgraphs" Peonal Style ueus Coistency Summary KNOWING WHAT TO COMMENT What NOT to Comment Becordin9 Your Thouyhts Put Youelf in the Reader's Shoes Final Thoughts--Getting Over Writer's Block Summary MAKING COMMENTS PRECISE AND COMPACT Keep Comments Compact Avoid Ambiguous Pronou Polish Sloppy Sentences Describe Function Behavior Precisely Use Input/Output Examples That Illustrate Corner Cases State the Intent of Your Code "Named Function Parameter" Comments Use Information-Dee Words SummaryPart Two SIMPLIFYING LOOPS AND LOGIC MAKING CONTROL FLOW EASY TO READ The Order of Arguments in Conditionals The Order of if/else Blocks The ?: Conditional Expression (a.k.a. "Ternary Operator") Avoid dogwhile Loops Returning Early from a Function The Infamous goto Minimize Nesting Can You Follow the Flow of Execution? Summary BREAKING DOWN GIANT EXPRESSIONS Explainin9 Variables Summary Variables Using De Morgan's Laws Abusing Short-Circuit Logic Example: Wrestling with Complicated Logic Breaking Down Giant Statements Another Creative Way to Simplify Expressio Summary VARIABLES AND READABILITY Eliminatinfg Variables Shrink the Scope of Your Variables Prefer Write-Once Variables A Final Example SummaryPart Three REORGANIZING YOUR CODE EXTRACTING UNRELATED SUBPROBLEMS Introductory Example: findClosestLoeationO Pure Utility Code Other General-Purpose Code Create a Lot of General-Purpose Code Project-Specific Functionality Simplilying an Existing Interface Reshaping an Interface to Your Needs Taking Things Too Far Summary ONETASK ATA TIME Tasks Can Be Small Extracting Values from an Object A Larger Example Summary TURNING THOUGHTS INTO CODE Describing Logic Clearly Knowing Your Libraries Helps Applying This Method to Larger Problems Summary WRITING LESS CODE Don't Bother Implementing That Feature--You Won't Need It Question and Break Douan Your Requirements Keeping Your Codebase Small Be Familiar with the Libraries Around You Example: Using Unix Tools Itead of Coding SummaryPart Four SELECTED TOPICS TESTING AND READABILITY Make Tests Easy to Read and Maintain What's Wrong with This Test? Making This Test More Readable Making Error Messages Readable Choosing Good Test Inputs Naming Test Functio What Was Wrong with That Test? Test-Friendly Deuelopment Going Too Far Summary DESIGNING AND IMPLEMENTING A "MINUTE/HOUR COUNTER" The Problem Defining the Class Interface Attempt 1: A Naiue Solution Attempt 2: Conueyor Belt Design Attempt 3: A Time-Bucketed Design Comparing the Three Solutio Summary FURTHER READING INDEX

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