class A {
// ⭐️ staic members
static a; // A.a = undefined
static b = 0; // A.b = 0
static get c() { ... } // A.c (static getter)
static d() { ... } // A.d() (static method)
// ⭐️ private static members (# means "private")
// (accessable only within the class body)
// (private members are not inherited)
static #e; // A.#e
static get #f() { ... } // A.#f
static #g() { ... } // A.#g()
}