Recent questions tagged Constructor

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When compiling this program, I get error- class Person { Person(int a) { } } class Employee extends Person ... defining Person() is necessary? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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942 views

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constructor - How does Python's "super" do the right thing?

I'm running Python 2.5, so this question may not apply to Python 3. When you make a diamond class ... has no super or __super__ attributes. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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constructor - ReactJS: Warning: setState(...): Cannot update during an existing state transition

I am trying to refactor the following code from my render view: <Button href="#" active={!this.state. ... } module.exports = Search; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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974 views

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constructor - In Ruby, what's the relationship between 'new' and 'initialize'? How to return nil while initializing?

What I want is: obj = Foo.new(0) # => nil or false This doesn't work: class Foo def initialize(val) ... . But I'm wondering whether it is possible in Ruby. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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constructor - C# member variable initialization; best practice?

Is it better to initialize class member variables on declaration private List<Thing> _things = new List<Thing>(); ... trade-offs, one way or the other? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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997 views

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constructor - What is the best way to give a C# auto-property an initial value?

How do you give a C# auto-property an initial value? I either use the constructor, or revert to the old syntax. Using ... = value; } } Is there a better way? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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991 views

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constructor - C++ How does implicit construction work, struct initialization?

I have a question about implicit constructors. So let's say I have the following scenario: struct ... /65925572/c-how-does-implicit-construction-work-struct-initialization...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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constructor - How can I set default parameters for mutable structs in Julia?

Is there a way to add default parameters for mutable structs in Julia? I'm trying to write something like the ... /how-can-i-set-default-parameters-for-mutable-structs-in-julia...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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constructor 里面如何使用 await 或如何设计这个类？

封装了一个类，初始化成员的时候获需要使用一个异步方法请问如何使用同步初始化这个成员呢？ class MyStorage { $data = []; constructor() { try { // 请问这 ... .$data = []; } } // .... } export const MyABCStorage = new MyStorage();...

asked Jan 29, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.2k views

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constructor - How to represent a 'long' number as nodes in a linked-list [JAVA]

I have a pragmatic task to solve: Int and Long numbers that we can store in memory cells are limited in size. One way ... suggest me how can I approach this? Thank you in advance!...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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4.5k views

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constructor - How to represent a 'long' number as nodes in a linked-list [JAVA]

I have a pragmatic task to solve: Int and Long numbers that we can store in memory cells are limited in size. One way ... suggest me how can I approach this? Thank you in advance!...

asked Jan 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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