的onclick功能,通过JavaScript的添加量 [英] onclick function for adding the amounts by javascript
问题描述
由于我目前正在与我的项目addcart。我写的JavaScript查询单选按钮,任何一个可以检查这一点无论我的查询是错还是对?
As I am currently working with my project for addcart. I have written the javascript query for radio button can any one check this either my query is wrong or right?
JavaScript的:
JavaScript:
function get_radio_value()
{
for (var i=0; i < document."make_payment_frm".rmr.length; i++)
{
if (document."make_payment_frm".rmr[i].checked)
{
var rad_val = document."make_payment_frm".rmr[i].value;
}
}
}
HTML:
HTML:
<input name="rmr" id="rmr" type="radio" value="3" onclick="get_radio_value()">
<input name="rmr" id="rmr" type="radio" value="5" onclick="get_radio_value()">
<input name="rmr" id="rmr" type="radio" value="10" onclick="get_radio_value()">
任何一个可以给我正确的code?如果我点击这些按钮的数量应与addcart添加量。例如:如果我的addcart量27£那么我选择第二个单选按钮finaly应该显示像32£
Can any one give me the correct code? If I click those buttons that amount should be added with addcart amount. For example: if my addcart amount is 27£ then I choose 2nd radio button finaly it should be display like a 32£.
在此先感谢。
推荐答案
您的语法是关闭的,它应该是 document.make_payment_frm
,而不是在有引号(这对支架符号,例如文件[make_payment_frm]
)。此外,标识不应该被重复的,你的投入应该仅仅是:
Your syntax is off, it should be document.make_payment_frm
, not quotes in there (that's for bracket notation, e.g. document["make_payment_frm"]
). Also, IDs shouldn't be repeated, your inputs should just be:
<input name="rmr" type="radio" value="3" onclick="get_radio_value()" />
<input name="rmr" type="radio" value="5" onclick="get_radio_value()" />
<input name="rmr" type="radio" value="10" onclick="get_radio_value()" />
然后匹配的脚本来获取值:
Then matching script to get the value:
function get_radio_value() {
var rad_val = 0;
for (var i=0; i < document.make_payment_frm.rmr.length; i++) {
if (document.make_payment_frm.rmr[i].checked) {
rad_val = document.make_payment_frm.rmr[i].value;
break;
}
}
//use rad_val here to add to whatever
}
你可以在这里测试它。
不过既然你标记这个jQuery的,为何不把它充分利用?除去那些的onclick
处理程序,并添加点击
或变更
处理程序,像这样的:
But since you tagged this jQuery, why not take full advantage of it? Remove those onclick
handlers and add a click
or change
handler, like this:
$(function() {
$("input[name='rmr']").change(function() {
var val = +$(this).val();
//use val, it's a number ready to add to
});
});
你可以在这里的测试版本。
这篇关于的onclick功能,通过JavaScript的添加量的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!