javascript - 使用单选按钮进行 jquery 计算

Question

Stackoverflow 社区您好，

我目前正在尝试实现以下 fiddle :http://jsfiddle.net/8D3tJ/2/在我的一个项目中，主要区别是我没有使用选择选项，而是使用输入字段/单选按钮。

请查看我的代码:

    <li id="fo143li1" class="notranslate focused">
        <fieldset>
        <div class="price-option">
        <input id="radioDefault_1" name="Field1" type="hidden" value="">
            <span>
            <div class="price" style="float: right; margin-top: 5px;"></div>
        <input id="Field1_0" name="Field1" data-price="5" type="radio" class="field radio" value="5" tabindex="1">
        <label class="choice" for="Field1_0">
            First Choice</label>
            </span>
            <span>
            <div class="price" style="float: right; margin-top: 5px;">300 USD</div>
        <input id="Field1_1" name="Field1" type="radio" class="field radio" value="Second Choice" tabindex="2">
        <label class="choice" for="Field1_1">
            Second Choice</label>
            </span>
            <span>
            <div class="price" style="float: right; margin-top: 5px;">300 USD</div>
        <input id="Field1_2" name="Field1" type="radio" class="field radio" value="Third Choice" tabindex="3">
        <label class="choice" for="Field1_2">
            Third Choice</label>
            </span>
            </div>
        </fieldset>
        </li>
        </ul>
    </form>

    <p class="result" data-base-price="50">&pound;<span>50.00</span></p>

这是我编辑的 jquery 部分:

    <script type="text/javascript">
    $(document).ready(function () {
        $('.price-option').change(function(){
            var price = parseFloat($('.price').data('base-price'));

            $('.price-option').each(function(i, el) {
                price += parseFloat($('checked:checked', el).data('price'));
            });

            $('.result span').text(price.toFixed(2));
        }); 
    });
    </script>

如果我要根据上面的标记尝试此方法，我将返回 NaN 值。 我有什么想法可以让它发挥作用吗？一些专家的帮助将不胜感激。

Answer 1

<li id="fo143li1" class="notranslate focused">
    <fieldset>
    <div class="price-option">
    <input id="radioDefault_1" name="Field1" type="hidden" value="">
        <span>
        <div class="price" style="float: right; margin-top: 5px;"></div>
    <input id="Field1_0" name="Field1" data-price="5" type="radio" class="field radio" value="5" tabindex="1">
    <label class="choice" for="Field1_0">
        First Choice</label>
        </span>
        <span>
        <div class="price" style="float: right; margin-top: 5px;">300 USD</div>
    <input id="Field1_1" name="Field1" type="radio" data-price="10" class="field radio" value="Second Choice" tabindex="2">
    <label class="choice" for="Field1_1">
        Second Choice</label>
        </span>
        <span>
        <div class="price" style="float: right; margin-top: 5px;">300 USD</div>
    <input id="Field1_2" name="Field1" type="radio" class="field radio" data-price="15" value="Third Choice" tabindex="3">
    <label class="choice" for="Field1_2">
        Third Choice</label>
        </span>
        </div>
    </fieldset>
    </li>
    </ul>
</form>

<p class="result" data-base-price="50">&pound;<span>50.00</span></p>

在js中

$(document).ready(function () {
    $('.radio').change(function(){
        var price=  parseFloat($('.result').data('base-price'));

        $('.radio').each(function(i, el) {
            if($(this).is(":checked"))
            price += parseFloat($(this).data('price'));
        //    console.log(parseFloat($(this).data('price')));
        });

        $('.result span').text(price.toFixed(2));
    }); 
});

检查 fiddle 在这里http://jsfiddle.net/C4Lrg/