Correctly declare static variables in JavaScript classes

Question

In my code, I do the following (very simplified):

class AddOrSelectAddress {
    static body; // <-- Error

    static async open() {
        await $.get(         


        

Answer 1

Static methods are perfectly fine to use. However static properties are a recent addition that dont work in all browsers yet. It works in Chrome but like you said not in firefox. Please take a look at this article as it backs up my answer : https://javascript.info/static-properties-methods. To fix your issue you could declare the variable inside your static method.