class Person {
constructor(name) {
this._name = name
}
}
new Person("Jane")
class Foobar {
public:
Foobar(double r = 1.0,
double alpha = 0.0) // Constructor, parameters with default values.
: x_(r * cos(alpha)) // <- Initializer list
{
y_ = r * sin(alpha); // <- Normal assignment
}
private:
double x_;
double y_;
};
Foobar a,
b(3),
c(5, M_PI/4);
public class MyClass
{
private int a;
private string b;
// Constructor
public MyClass() : this(42, "string")
{
}
// Overloading a constructor
public MyClass(int a, string b)
{
this.a = a;
this.b = b;
}
}
// Code somewhere
// Instantiating an object with the constructor above
MyClass c = new MyClass(42, "string");
proc init
component {
// properties
property name="cheeseName";
// constructor
function Cheese init( required string cheeseName ) {
variables.cheeseName = arguments.cheeseName;
return this;
}
}
class Foobar
|float| x
|float| y
constructor (|float| r=1, |float| alpha=0)
.x = r * alpha.cos
.y = r * alpha.sin
|| a = foobar()
|| b = foobar(3)
|| c = foobar(5, M_PI/4)
Languages with Constructors include JavaScript, Python, Java, C++, PHP, C#, MATLAB, Objective-C, Chapel, Visual Basic .NET, Dale, Object Pascal, CFML, Action!, Aardvark, Speedie
Languages without Constructors include C, C3, progsbase, C2
View all concepts with or missing a hasConstructors measurement
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