1.3.0 • Published 6 years ago
abstract-class-js v1.3.0
abstract-js
Abstract class enforcement in JS
Getting Started
Simply import the module as a class. To create an abstract class, use the imported module as its superclass.
const AbstractClass = require("abstract-class-js");
class Parent extends AbstractClass {
constructor() {
super(Parent, ["test"]);
}
}
class Child extends Parent {
constructor(){
super();
}
test(){
console.log("Hello, World!");
}
}
To add 'required' implementations, simply construct the class with an arugment after the class name itself.
class Parent extends AbstractClass {
constructor() {
super(Parent, ["required", "methods", "go", "here"]);
}
}
This library also provides a convinience method called super()
for all Object
types. This allows you to check if a class belongs to an abstract class.
Errors
An attempt to initiate an abstract class will result an error.
Error: Abstract class Parent cannot be cannot be instantiated without a subclass implementation.
An incomplete implementation of a class will result an error as well.
Error: Classes extending abstract class Parent must implement test