My current challenge involves integrating JavaScript prototype with class-based programming. Here is an example of what I've tried:
function Cat(name) {
this.name = name;
}
Cat.prototype.purr = function(){
console.log(`${this.name} purr`);
}
Cat.prototype.meow = function(){
console.log(`${this.name} meow`);
}
class Tiger extends Cat {
constructor(name) {
super(name);
}
meow() {
console.log(`${this.name} roar`);
}
}Although the JavaScript code above is valid, I then attempted to convert the code to TypeScript as follows:
function Cat(this : any, name : string) {
this.name = name;
}
Cat.prototype.purr = function(){
console.log(`${this.name} purr`);
}
Cat.prototype.meow = function(){
console.log(`${this.name} meow`);
}
// error: Type '(this: any, name: string) => void' is not a constructor function type.
class Tiger extends Cat {
constructor(name : string) {
super(name);
}
meow() {
console.log(`${this.name} roar`);
}
}Unfortunately, the class Tiger does not accept the class Cat as its base class in TypeScript (valid in JavaScript but not in TypeScript). I am unable to change the Cat to standard class syntax because I need the .prototype access to point to another JavaScript library.
Can anyone assist in fixing the TypeScript code provided above? Perhaps by adding some .d.ts definitions.
Note: Adding // @ts-ignore would work, but I cannot do that as it would disable the VS Code IntelliSense feature.