sacma boolean hatası (Solved)

let a = undefined;
const res = a ??= true;
console.log(a)

let a = undefined;
const res = a ??= true;
console.log(a)

let a = true;
const res = a ??= "changed";
console.log(a)

let a = true;
const res = a ??= "changed";
console.log(a)

const code = false;
const s = code ?? 0;
console.log(s)

const code = false;
const s = code ?? 0;
console.log(s)

let base = this.client;
let runCommand = "on";

[base][runCommand](...)

let base = this.client;
let runCommand = "on";

[base][runCommand](...)

function a() {
  console.log("function")
}

a.prototype.json = { sa: "slm", as: "hg" }
console.log(new a()) 
console.log(new a().json)

function a() {
  console.log("function")
}

a.prototype.json = { sa: "slm", as: "hg" }
console.log(new a()) 
console.log(new a().json)

class A {
  constructor(data) {
     this.data = data ?? "0";
  };

  get isString() {
     return (typeof this.data == "string");
  };

  toString() {
    return this.data;
  }
}

console.log(String(new A()), new A().isString)

class A {
  constructor(data) {
     this.data = data ?? "0";
  };

  get isString() {
     return (typeof this.data == "string");
  };

  toString() {
    return this.data;
  }
}

console.log(String(new A()), new A().isString)