create a class variable that has value modifiers in javascript

In JavaScript, class variables can be created using the static keyword. However, JavaScript does not have native access modifiers like other languages, such as private or protected. However, you can achieve similar behavior by using naming conventions or closures.

Here's an example of creating a class variable with a value modifier using naming conventions:

index.tsx
class MyClass {
  static _myVariable = 10;   // Private variable

  static get myVariable() {
    return MyClass._myVariable;
  }

  static set myVariable(value) {
    // Add your custom value modifier logic here
    MyClass._myVariable = value;
  }
}

console.log(MyClass.myVariable);  // Output: 10

MyClass.myVariable = 20;   // Assigning new value using setter
console.log(MyClass.myVariable);  // Output: 20
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In the above example, _myVariable is a private class variable that can be accessed and modified using the getter and setter methods myVariable. By convention, the underscore _ prefix signifies that it is intended to be a private variable.

You can add your custom logic inside the setter method to modify the value before assigning it to the class variable.

It's important to note that this is not a true access modifier, and it relies on programmers following conventions to indicate private or protected variables.