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Private slots are new and can be created via Private methods and accessors

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barisx answered on March 25, 2022 Popularity 1/10 Helpfulness 1/10

answer Private slots are new and can be created via Private methods and accessors

related Private slots are new and can be created via Instance private fields

related Private slots are new and can be created via Instance and static private fields

Private slots are new and can be created via Private methods and accessors

Comment

// ES2022
class MyClass {
  #privateMethod() {}
  static check() {
    const inst = new MyClass();

    console.log(#privateMethod in inst) // output-> true

    console.log(#privateMethod in MyClass.prototype) // output-> false

    console.log(#privateMethod in MyClass) // output-> false
  }
}
MyClass.check();

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: dev.to

Tags: javascript private private-methods slots

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Contributed on Mar 25 2022

barisx

0 Answers Avg Quality 2/10

Closely Related Answers

Private slots are new and can be created via Instance private fields

Comment

// ES2022
class InstPrivateClass {
  #privateField1 = 'private field 1'; // (A)
  #privateField2; // (B) required!
  constructor(value) {
    this.#privateField2 = value; // (C)
  }
  /**
   * Private fields are not accessible outside the class body.
   */
  checkPrivateValues() {
  console.log(this.#privateField1); // output -> 'private field 1'
  console.log(this.#privateField2); // output -> 'constructor argument'

  }
}

const inst = new InstPrivateClass('constructor argument');
  inst.checkPrivateValues();


console.log("inst", Object.keys(inst).length === 0) //output -> inst, true

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: dev.to

Tags: javascript private slots instance

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Contributed on Mar 25 2022

barisx

0 Answers Avg Quality 2/10

Private slots are new and can be created via Instance and static private fields

Comment

// ES2022
class InstPrivateClass {
  #privateField1 = 'private field 1'; // (A)
  #privateField2; // (B) required!
  static #staticPrivateField = 'hello';
  constructor(value) {
    this.#privateField2 = value; // (C)
  }
  /**
   * Private fields are not accessible outside the class body.
   */
  checkPrivateValues() {
    console.log(this.#privateField1); // output -> 'private field 1'
    console.log(this.#privateField2); // output -> 'constructor argument'

  }

  static #twice() {
    return this.#staticPrivateField + " " + this.#staticPrivateField;
  }

  static getResultTwice() {
    return this.#twice()
  }
}

const inst = new InstPrivateClass('constructor argument');
inst.checkPrivateValues();


console.log("inst", Object.keys(inst).length === 0) //output -> "inst", true
console.log(InstPrivateClass.getResultTwice()); // output -> "hello hello"

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: dev.to

Tags: slots static instance javascript private

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Contributed on Mar 25 2022

barisx

0 Answers Avg Quality 2/10

Private slots are new and can be created via Private methods and accessors

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Private slots are new and can be created via Private methods and accessors

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Private slots are new and can be created via Instance private fields

Private slots are new and can be created via Instance and static private fields

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