我需要在文本字段中放置汇率并更新多个文本区域费率需要更新
Exchange Rate <input type="text" value="" id="exchange_rate">
<input type="button" value="Update Price" id="update_price">
文本区域计数是动态的,这里有一些示例
<input class="price" name="pro_name[88197][1]" rel="4450000" value="" type="text">
<input class="price" name="pro_name[12316][2]" rel="4451000" value="" type="text">
<input class="price" name="pro_name[46511][3]" rel="4575120" value="" type="text">
<input class="price" name="pro_name[45151][4]" rel="2343400" value="" type="text">
<input class="price" name="pro_name[165652][5]" rel="4534500" value="" type="text">
<input class="price" name="pro_name[85559][6]" rel="4450000" value="" type="text">
现在我需要将每个文本区域值都带到上面 rel * exchange_rate = value (rel是日本的YEN金额,汇率是USD)
我这样开始我的jquery并且卡住了,请帮帮我一个人!!
$("#update_price").click(function () {
var all_price_element = [];
price_class = $( ".price" ).toArray();
for ( var i = 0; i < price_class.length; i++ ) {
all_price_element.push( price_class[ i ].innerHTML );
}
});
答案 0 :(得分:1)
您可以更新以下所有价格。
$("#update_price").click(function () {
var ex_rate = $('#exchange_rate').val();
$(".price").each(function() {
var rel = $(this).attr('rel')
$(this).val(ex_rate * rel);
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input class="price" name="pro_name[88197][1]" rel="4450000" value="" type="text">
<input class="price" name="pro_name[12316][2]" rel="4451000" value="" type="text">
<input class="price" name="pro_name[46511][3]" rel="4575120" value="" type="text">
<input class="price" name="pro_name[45151][4]" rel="2343400" value="" type="text">
<input class="price" name="pro_name[165652][5]" rel="4534500" value="" type="text">
<input class="price" name="pro_name[85559][6]" rel="4450000" value="" type="text">
Exchange Rate
<input type="text" value="" id="exchange_rate">
<input type="button" value="Update Price" id="update_price">
答案 1 :(得分:1)
您可以使用.each():
所以代码片段是:
$("#update_price").click(function (e) {
//
// get the current exchange_rate and convert it to number
//
var er = +document.getElementById('exchange_rate').value;
//
// for each price element do the calculation:
//
// get the current rel value, convert it to number and
// multiply per rel
//
$( ".price").each(function(index, element) {
element.value = er * +element.getAttribute('rel');
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
Exchange Rate <input type="text" value="" id="exchange_rate">
<input type="button" value="Update Price" id="update_price">
<input class="price" name="pro_name[88197][1]" rel="4450000" value="" type="text">
<input class="price" name="pro_name[12316][2]" rel="4451000" value="" type="text">
<input class="price" name="pro_name[46511][3]" rel="4575120" value="" type="text">
<input class="price" name="pro_name[45151][4]" rel="2343400" value="" type="text">
<input class="price" name="pro_name[165652][5]" rel="4534500" value="" type="text">
<input class="price" name="pro_name[85559][6]" rel="4450000" value="" type="text">
</form>