🔸private member

JS ⟩ value ⟩ object ⟩ class ⟩ member ⟩ private

• private members are not inherited❗

class A {
  // ⭐️ private members     // # means "private"
  #a;                       // this.#a = undefined
  #b = 0;                   // this.#b = 0
  get #c() { return 0 }     // this.#c   (private getter)
  #d() { ... }              // this.#d() (private method)
  
  // ⭐️ private static members
  // (accessable only within the class body)
  static #staticProp;                // A.#staticProp
  static get #CONST() { return 0 }   // A.#CONST
  static #staticMethod() { ... }  // A.#staticMethod()
}

🧨

• never use "this" to access a private static field,

• always use the direct class name.

👉 📗 2ality.com ⟩ ECMAScript proposal: private class fields

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supporting environments

✅

• replit

• CodePen

• CodeSandbox (needs setup)

CodeSandbox