The this context and inner functions

this_test.js

const this_test = {
    returns_global_this() {
        function inner() {
            // even unbound inner function's
            // this context is globalThis.
            return this;
        }
        return inner();
    },
    returns_local_this() {
        const inner = () => {
            return this;
        }
        return inner();
    }
};

this_test.returns_global_this() === globalThis;

this_test.returns_local_this() === this_test;