Class property inheritance and constructor usage

[albohlabs]

TypeScript Version: 2.3

Code

class A {
    prop = 'A';

    constructor() {
	this.outputProp();
    }

    outputProp() {
	console.log(this.prop);
    }
}

class B extends A {
   prop = 'B';

    constructor() {
        super();
	this.outputProp();
    }
}

new B();

Expected behavior:

The output of console.log should be the value of prop from class B.

I would expect that a method call from the constructor is not evaluated before the class properties are assigned.

Actual behavior:

console.log output is A.

[ikatyang]

Possible duplicate of #7724

See #7724 (comment)

[albohlabs]

@ikatyang Yes, you are right.

Will close this.