javascript - 尝试以这种格式（inputField，currentDate，RadioButtonValue）向二维数组添加值并根据需要调用它们......无法让它工作

Question

我想从输入字段（数字）和单选按钮中获取值，并将其存储到具有当前日期的数组中。然后我希望能够在一个 div 中获取和显示总数，并在另一个 div 中列出该数组的所有值。

到目前为止，这是我的 HTML：

<div data-role="fieldcontain" data-controltype="textinput">
    <input name="" id="amount" placeholder="Amount" value="" type="number">
</div>
<div data-role="fieldcontain" data-controltype="radiobuttons">
    <fieldset data-role="controlgroup" data-type="horizontal" id="type">
        <input id="radio1" name="" value="cash" type="radio">
        <label for="radio1">cash</label>
        <input id="radio2" name="" value="cheque" type="radio">
        <label for="radio2">cheque</label>
    </fieldset>
</div>
<button onClick="Transaction.add()">ADD</button>
<button onClick="Transaction.subtract()">SUBTRACT</button>
<div>
    <button onClick="Transaction.getTotal()">GET TOTAL!</button>
    <p id="total"></p>
</div>
<div>
    <button onClick="Transaction.list()">List</button>
    <p id="listSpace"></p>
</div>

和我的 JS：

function currentDate() {
    var d = new Date();
    var dateString = d.getDate() + "/" + d.getMonth + 1 + "/" + date.getFullYear().toString().substr(2, 2) + " " + d.getHours() + minutes
    return dateString;
}
var movements = [];

function Transaction() {
    this.amount = Number(document.getElementById("amount").value);
    this.date = currentDate();
    this.type = document.getElementById("type").value;
    this.add = function () {
        movements.push([this.amount, this.date, this.type]);
    };
    this.subtract = function () {
        movements.push([-(this.amount), this.date, this.type]);
    };
    this.getTotal = function () {
        for (var i = 0; i < movements.length; i++) {
            movements[i][0].reduce(function (a, b) {
                document.getElementById("total").innerHTML = a + b;
            }, 0);
        }
    };
    this.list = function () {
        for (var j in movements) {
            document.getElementById("listSpace").innerHTML = movements[j]
        };
    };
}

我知道我作为一个新手可能做错了很多事情，所以任何帮助解决这个问题将不胜感激！

这是 JSfiddle 链接：http: //jsfiddle.net/soundCat/93Jsz/