jQuery复选框并选择 - 将值和添加在var [英] jQuery checkbox and select - sum the values and add in var
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问题描述
以下代码解释:
HTML代码是:
<div id="container"><h1>Add-ons</h1>
<input type="checkbox" name="ch1" value="10" id="qr1" />Add-on Number 1 - 10 QR <br />
<input type="checkbox" name="ch1" value="20" id="qr1" />Add-on Number 2 - 20 QR <br />
<input type="checkbox" name="ch1" value="40" id="qr1" />Add-on Number 3 - 40 QR <br />
<input type="checkbox" name="ch1" value="60" id="qr1" />Add-on Number 4 - 60 QR <br />
</div>
<div> I want more add-ons
<select id="more" name="more">
<option value="0 QR">0</option>
<option value="30 QR">1</option>
<option value="50 QR">2</option>
<option value="100 QR">3</option>
</select>
<span id="span"></span>
User total usage: <span id="usertotal"> </span>
jQuery:
//For select
function displayVals() {
var singleValues = $("#more").val();
$("#span").html("<b>more addons:</b> " +
singleValues);
}
$("select").change(displayVals);
displayVals();
//For checkboxes
var $cbs = $('input[name="ch1"]');
$cbs.click(function() {
var total = 0;
$cbs.each(function() {
if (this.checked)
var singleValues = $("#more").val();
total += +this.value + singleValues;
});
$("#usertotal").text(total);
});
我想要用户总使用:创建复选框的总和并添加选项的值所以如果我选择复选框1和2加选项1我将写入用户总使用:60。
I want the user total usage: to create the sum of the checkboxes and add the value of the option so that if I select checkbox 1 and 2 plus option 1 I will have written in user total usage: 60.
推荐答案
ve为您的代码创建了 小提琴 。
I've created a fiddle for your code.
希望这是您想要的。
HTML:
<div id="container"><h1>Add-ons</h1>
<input type="checkbox" name="ch1" value="10" id="qr1" />Add-on Number 1 - 10 QR <br />
<input type="checkbox" name="ch1" value="20" id="qr1" />Add-on Number 2 - 20 QR <br />
<input type="checkbox" name="ch1" value="40" id="qr1" />Add-on Number 3 - 40 QR <br />
<input type="checkbox" name="ch1" value="60" id="qr1" />Add-on Number 4 - 60 QR <br />
</div>
<div> I want more add-ons
<select id="more" name="more">
<option value="0">0</option>
<option value="30">1</option>
<option value="50">2</option>
<option value="100">3</option>
</select>
<span id="span"></span>
User total usage: <span id="usertotal"> </span>
Javascript:
Javascript:
function displayVals() {
calcUsage();
var singleValues = $("#more").val();
$("#span").html("<b>more addons:</b> " +
singleValues + ' QR');
}
var $cbs = $('input[name="ch1"]');
function calcUsage() {
var total = $("#more").val();
$cbs.each(function() {
if (this.checked)
total = parseInt(total) + parseInt(this.value);
});
$("#usertotal").text(total + ' QR');
}
$("select").change(displayVals);
displayVals();
//For checkboxes
$cbs.click(calcUsage);
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