Moderators: trava90, athenian200
Code: Select all
class A {
constructor() { };
#t() { alert('bad'); };
};
class B extends A {
constructor(){ super(); };
test() { this.#t(); };
};
var s = new B();
s.test();
Private instance fields
Like their public counterparts, private instance fields:
are added before the constructor runs in a base class, or immediately after super() is invoked in a subclass, and
are only available on instances of the class.
Code: Select all
class ClassWithPrivateField {
#privateField;
constructor() {
this.#privateField = 42;
}
}
class Subclass extends ClassWithPrivateField {
#subPrivateField;
constructor() {
super();
this.#subPrivateField = 23;
}
}
new Subclass(); // In some dev tools, it shows Subclass {#privateField: 42, #subPrivateField: 23}
In some dev tools, it shows Subclass {#privateField: 42, #subPrivateField: 23}
Ok.
Code: Select all
<html>
<body>
<script>
class A {
constructor() { };
#t() { alert('bad'); };
};
class B extends A {
constructor(){ super(); };
test() { this.#t(); };
};
var s = new B();
s.test();
</script>
</body>
</html>
Code: Select all
<html>
<body>
<script>
class A {
constructor() { };
#t() { alert('bad'); };
};
var s = new A();
s.#t();
</script>
</body>
</html>
