jQuery 的简单乘法
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时间：2020-08-26 12:34:37 来源:igfitidea点击:
Simple Multiplication with jQuery
提问by skramer
I can't seem to figure out out how to multiply 2 divs and display the total in another div. My several attempts were unsuccessful. For instance the end result would look like this:
我似乎无法弄清楚如何将 2 个 div 相乘并在另一个 div 中显示总数。我的几次尝试都没有成功。例如，最终结果将如下所示：
<div class="itemOne">2</div>
<div class="itemTwo">5</div>
<div class="total">10</div>
回答by Reinstate Monica Cellio
Try this...
尝试这个...
var one = parseInt($(".itemOne").text(), 10);
var two = parseInt($(".itemTwo").text(), 10);
$(".total").text(one * two);
回答by j08691
No need for jQuery here. In plain JavaScript try:
这里不需要 jQuery。在纯 JavaScript 中尝试：
?var a = document.getElementsByClassName('itemOne')[0].innerHTML;
var b = document.getElementsByClassName('itemTwo')[0].innerHTML;
document.getElementsByClassName('total')[0].innerHTML = parseInt(a,10)*parseInt(b,10);?
