add a protected static property to a class in javascript

To add a protected static property to a class in JavaScript, you'll need to use the Symbol function along with the Object.defineProperty() method. The Symbol function will generate a unique identifier while the Object.defineProperty() method allows you to define the property descriptor.

Here's an example code snippet:

index.tsx
const mySymbol = Symbol('mySymbol');

class MyClass {
  static get [mySymbol]() {
    return 'Protected static property';
  }
}

console.log(MyClass[mySymbol]); // Output: "Protected static property"
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In the code above, we first define a Symbol that will be used as the protected property name. Then, we define a class MyClass with a getter method that returns the value of the protected static property when called. Note that the Symbol is wrapped in square brackets to access the protected property.

Since the mySymbol property is defined with the static keyword, it is only accessible at the class level and cannot be accessed via an instance of the class. Also, since it's defined with a Symbol, it's a protected property and cannot be accessed outside of the class.