دانلود کتاب Effective Kotlin: Best Practices

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Table of Contents Introduction: Be pragmatic Part 1: Good code Chapter 1: Safety Item 1: Limit mutability Item 2: Minimize the scope of variables Item 3: Eliminate platform types as soon as possible Item 4: Do not expose inferred types Item 5: Specify your expectations on arguments and state Item 6: Prefer standard errors to custom ones Item 7: Prefer null or Failure result when the lack of result is possible Item 8: Handle nulls properly Item 9: Close resources with use Item 10: Write unit tests Chapter 2: Readability Item 11: Design for readability Item 12: Operator meaning should be consistent with its function name Item 13: Avoid returning or operating on Unit? Item 14: Specify the variable type when it is not clear Item 15: Consider referencing receivers explicitly Item 16: Properties should represent state, not behavior Item 17: Consider naming arguments Item 18: Respect coding conventions Part 2: Code design Chapter 3: Reusability Item 19: Do not repeat knowledge Item 20: Do not repeat common algorithms Item 21: Use property delegation to extract common property patterns Item 22: Use generics when implementing common algorithms Item 23: Avoid shadowing type parameters Item 24: Consider variance for generic types Item 25: Reuse between different platforms by extracting common modules Chapter 4: Abstraction design Item 26: Each function should be written in terms of a single level of abstraction Item 27: Use abstraction to protect code against changes Item 28: Specify API stability Item 29: Consider wrapping external API Item 30: Minimize elements visibility Item 31: Define contract with documentation Item 32: Respect abstraction contracts Chapter 5: Object creation Item 33: Consider factory functions instead of constructors Item 34: Consider a primary constructor with named optional arguments Item 35: Consider defining a DSL for complex object creation Chapter 6: Class design Item 36: Prefer composition over inheritance Item 37: Use the data modifier to represent a bundle of data Item 38: Use function types instead of interfaces to pass operations and actions Item 39: Prefer class hierarchies to tagged classes Item 40: Respect the contract of equals Item 41: Respect the contract of hashCode Item 42: Respect the contract of compareTo Item 43: Consider extracting non-essential parts of your API into extensions Item 44: Avoid member extensions Part 3: Efficiency Chapter 7: Make it cheap Item 45: Avoid unnecessary object creation Item 46: Use inline modifier for functions with parameters of functional types Item 47: Consider using inline classes Item 48: Eliminate obsolete object references Chapter 8: Efficient collection processing Item 49: Prefer Sequence for big collections with more than one processing step Item 50: Limit the number of operations Item 51: Consider Arrays with primitives for performance-critical processing Item 52: Consider using mutable collections Dictionary