我正在尝试基于表单字段的输入配置实时调用程序。 我的问题是,我根本无法弄清楚如何在网站上显示结果。实时javascript计算
<label class="contactform-label" for="contactform-member"><span class="contact_form_span">Member*:</span> </label>
<input class="contactform-input" type="text" id="contactform-member" placeholder="Member" name="member" value="" />
<span id="member-kosten">
<script type="text/javascript">document.write(ausgabe)</script>
</span>
var price = 90;
var member = document.getElementById("contactform-member").value;
var calculate = Math.sqrt(price * member);
var ausgabe = (calculate);
@RuchishParikh通常这些标签不会显示在SO代码示例中。事实上,它们不是必需的,并且最好省略。 – 2016-11-18 12:22:05
重复的问题:http://stackoverflow.com/questions/13696679/outputting-a-live-calculation-based-on-field-values-in-a-form – MYGz