Top "Constructor" questions

A special type of subroutine called at the creation of an object.

Python constructor and default value

Somehow, in the Node class below, the wordList and adjacencyList variable is shared between all instances of Node. >>&…

python constructor default-value
Default parameters with C++ constructors

Is it good practice to have a class constructor that uses default parameters, or should I use separate overloaded constructors? …

c++ constructor coding-style overloading
What is the function __construct used for?

I have been noticing __construct a lot with classes. I did a little reading and surfing the web, but I …

php constructor
Inheriting constructors

Why does this code: class A { public: explicit A(int x) {} }; class B: public A { }; int main(void) { B *b = …

c++ inheritance gcc constructor
Can a constructor in Java be private?

Can a constructor be private? How is a private constructor useful?

java constructor private
What is the difference between using constructor vs getInitialState in React / React Native?

I've seen both used interchangeably. What are the main use cases for both? Are there advantages / disadvantages? Is one a …

reactjs react-native 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.singleJourney} onClick={…

reactjs constructor setstate
Creating an instance of class

What's the difference between lines 1 , 2 , 3 , 4? When do I use each? Why line 3 prints the constructor Foo and line 7 returns an …

c++ class constructor
Throwing exceptions from constructors

I'm having a debate with a co-worker about throwing exceptions from constructors, and thought I would like some feedback. Is …

c++ exception constructor throw