prototype_test.js

function solution(A) {
    // write your code in JavaScript (Node.js 6.4.0)
    function Klass(index, array) {
        this._index = index;
        this._array = array;
    }
    Klass.prototype = {
        value: function () {
            return this._array[this._index];
        }
    }
    T = [];
    for (i = 0; i < A.length; i++) {
        T.push(new Klass(i, A));
    }
    return T;
}