How to create a dynamic constructor without needing caller to use "new"

constuctor.js

function X(a, b, c) {
    console.log(a, b, c);
}

var c = (n, Fn) => { 
    return function() { 
        var a = _.toArray(arguments);
        var t = _.times(n, (n) => {
             return 'a[' + n + ']'
        });
        eval('new Fn(' + t.join(', ') + ');');
    };
};

c(3, X)('aa', 'bb', 'cc');