Effective python, 59 specific ways to write better python
Effective C#50 Specific Ways to Improve Your C# Second Edition phần 1 ppt
... permissions, write to: Pearson Education, Inc Rights and Contracts Department 5 01 Boylston Street, Suite 900 Boston, MA 0 211 6 Fax: ( 617 ) 6 71- 3447 ISBN -13 : 978-0-3 21- 65870-8 ISBN -10 : 0-3 21- 65870 -1 Text printed ... Immutable Atomic Value Types Chapter Expressing Designs in C# 74 77 79 87 94 98 10 4 11 0 11 4 12 5 Item 21: Limit Visibility of Your Types Item 22: Prefer Defining and Implementing Interfaces to Inheritance ... Wow! eBook Item 2: Prefer readonly to const ❘ 11 private const int Version1_0 = 0x 010 0; private const int Version1 _1 = 0x 010 1; private const int Version1_2 = 0x 010 2; // major release: private const...
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Effective C#50 Specific Ways to Improve Your C# Second Edition phần 2 pptx
... storage.Sort((point1, point2) => (point2.Item1*point2.Item1 + point2.Item2 * point2.Item2).CompareTo( point1.Item1 * point1.Item1 + point1.Item2 * point1.Item2)); return storage; } private static IEnumerable...
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Effective C#50 Specific Ways to Improve Your C# Second Edition phần 3 docx
... might need to perform multiple casts to invoke the conversion operators, a practice that leads to unmaintainable code If you want to convert another type into your type, use a constructor This ... logic to initialize static member variables, create a static constructor Implementing the singleton pattern in C# is the most frequent use of a static constructor Make your instance constructor ... static constructors are called And, yes, your static initializers execute before the base class’s static constructor The CLR calls your static constructor automatically before your type is first...
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Effective C#50 Specific Ways to Improve Your C# Second Edition phần 4 pdf
... way to limit the objects created to the minimum set you need to accomplish your goals Copy that technique in your programs You’ve learned two techniques to minimize the number of allocations your ... are meant to store data values, value types are the way to go The decision to make a value type or a reference type is an important one It is a far-reaching change to turn a value type into a class ... way to force a different initialization, but you can localize the problem using properties You created a property to export the value of msg to all your clients Add logic to that property to return...
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Effective C#50 Specific Ways to Improve Your C# Second Edition phần 6 pptx
... not a Customer", "obj"); Customer otherCustomer = (Customer)obj; return this.CompareTo(otherCustomer); } #endregion // Relational Operators public static bool operator ...
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Effective C#50 Specific Ways to Improve Your C# Second Edition phần 7 ppt
... Modifier Only to React to Base Class Updates ❘ 1 97 // details elided } } This is a problem Your base class snuck a method underneath your class’s naming scope There are two ways to fix this You ... data.AsParallel() where n < 150 select Factorial(n)).ToArray(); var stopAndGoList = (from n in data.AsParallel() where n < 150 select Factorial(n)).ToList(); Using Stop and Go processing you’ll often ... type of B (your Base class), even though the runtime type is D (your Derived class) Foo isn’t virtual; therefore, obj3.Foo() must resolve to B.Foo If your poor users actually want to get the...
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Effective C#50 Specific Ways to Improve Your C# Second Edition phần 8 pps
... and Cons of Dynamic C# s support for dynamic typing is meant to provide a bridge to other locations It’s not meant to encourage general dynamic language programming, but rather to provide a smoother ... itself dynamic At some point, you’ll want to bring those dynamic objects back into the static type system used by most of your C# code That’s going to require either a cast or a conversion operation: ... Expression.Add(leftOperand, rightOperand); var adder = Expression.Lambda( body, leftOperand, rightOperand); compiledExpression = adder.Compile(); } } You still need to specify the...
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Effective C#50 Specific Ways to Improve Your C# 2nd phần 3 pps
... might need to perform multiple casts to invoke the conversion operators, a practice that leads to unmaintainable code If you want to convert another type into your type, use a constructor This ... logic to initialize static member variables, create a static constructor Implementing the singleton pattern in C# is the most frequent use of a static constructor Make your instance constructor ... static constructors are called And, yes, your static initializers execute before the base class’s static constructor The CLR calls your static constructor automatically before your type is first...
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Effective C#50 Specific Ways to Improve Your C# 2nd phần 4 pot
... way to limit the objects created to the minimum set you need to accomplish your goals Copy that technique in your programs You’ve learned two techniques to minimize the number of allocations your ... are meant to store data values, value types are the way to go The decision to make a value type or a reference type is an important one It is a far-reaching change to turn a value type into a class ... way to force a different initialization, but you can localize the problem using properties You created a property to export the value of msg to all your clients Add logic to that property to return...
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Effective C#50 Specific Ways to Improve Your C# 2nd phần 5 ppt
... References to Internal Class Objects ❘ 155 caller a handle to your internal structures, so the caller no longer needs to go through your object to modify that contained reference Clearly, you want to ... you to create software that is easier to maintain, easier to extend, and easier to use 1 25 From the Library of Wow! eBook 126 ❘ Chapter Expressing Designs in C# Item 21: Limit Visibility of Your ... that’s changing the public interface to your class Changing the public interface to a class causes you to make many more changes to a large system; you would need to change all the locations where...
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Effective C#50 Specific Ways to Improve Your C# 2nd phần 6 docx
... not a Customer", "obj"); Customer otherCustomer = (Customer)obj; return this.CompareTo(otherCustomer); } #endregion // Relational Operators public static bool operator ...
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Effective C#50 Specific Ways to Improve Your C# 2nd phần 7 pps
... Modifier Only to React to Base Class Updates ❘ 1 97 // details elided } } This is a problem Your base class snuck a method underneath your class’s naming scope There are two ways to fix this You ... data.AsParallel() where n < 150 select Factorial(n)).ToArray(); var stopAndGoList = (from n in data.AsParallel() where n < 150 select Factorial(n)).ToList(); Using Stop and Go processing you’ll often ... type of B (your Base class), even though the runtime type is D (your Derived class) Foo isn’t virtual; therefore, obj3.Foo() must resolve to B.Foo If your poor users actually want to get the...
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