I attempted the following steps:
class Child {
public func() {
alert("hello");
}
constructor() {
Parent.apply(this, arguments);
}
}
Child["prototype"] = Object.create(Parent.prototype)
Child["prototype"].constructor = Child;
However, when I create an instance of the Child class, it does not have the func() method.
Can someone provide guidance on how to properly implement inheritance in JavaScript classes?
To declare and use an existing class, simply utilize the declare keyword.
declare class Parent { // This does not generate any JavaScript code
constructor(value);
}
class Child extends Parent {
constructor(value) {
super(value);
}
}
When dealing with an external module, it must be defined in a declaration file with extension .d.ts.
Consider the contents of ContainerSurface.d.ts:
declare class ContainerSurface {
constructor(options);
}
export = ContainerSurface;
Here's how you would implement it:
import ContainerSurface = require('ContainerSurface');
class Child extends ContainerSurface {
constructor(options) {
super(options);
}
}
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