JavaScript Static Methods
Static class methods are defined on the class itself.
You cannot call a static method on an object, only on an object class.
Example
class Car {
constructor(name) {
this.name =
name;
}
static hello() {
return "Hello!!";
}
}
let myCar = new Car("Ford");
// You can calll 'hello()' on
the Car Class:
document.getElementById("demo").innerHTML
= Car.hello();
// But NOT on a Car Object:
// document.getElementById("demo").innerHTML
= myCar.hello();
// this will raise an error.
If you want to use the myCar object inside the static method, you can send it
as a parameter:
Example
class Car {
constructor(name) {
this.name =
name;
}
static hello(x) {
return "Hello " +
x.name;
}
}
let myCar = new Car("Ford");
document.getElementById("demo").innerHTML
= Car.hello(myCar);
