Question

以下代码是我的javascript代码。由于某些原因，当我的HTML代码中的表单按钮调用时，这将无法运行。

<script type="text/javascript" language="javascript">
    function calculate(){
    alert('test');
    var JSlength = document.getElementById("length").value;
    var JSwidth = document.getElementById("width").value;
    var JSheight = document.getElementById("height").value;
    var JStotal = document.getElementById("total");

    var JStotal_divide = 0;
    var JStotal_output = 0;

    if (typeof(JSlength) === 'number') {
    if (typeof(JSwidth) === 'number') {
    if (typeof(JSheight) === 'number') {
    if(document.getElementById('international').checked)
    JStotal_divide = (JSlength * JSwidth * JSheight);
    JStotal_output = (JStotal_divide / 5000);

    JStotal.value = JStotal_output;
    } else {
    JStotal_divide = (JSlength * JSwidth * JSheight);
    JStotal_output = (JStotal_divide / 6000);

    JStotal.value = JStotal_output;
    }
    } else {
    window.alert("please only enter numbers.");
    }
    } else {
    window.alert("please only enter numbers.");
    }
    } else {
    window.alert("please only enter numbers.");
    }

    }
    </script>

下面的表单根本不会与javascript交互，按钮被按下并且没有任何反应，我尝试过多种东西，但由于某种原因，javascript只是不起作用？有谁可以解释为什么？

<form name="weight_calculate"> <input name="radio"
value="International" id="international" checked="checked" type="radio">International
<input name="radio" value="Domestic" id="domestic" type="radio">Domestic
<div class="header3">Length(cm)</div>
<input name="length" id="length" type="number">
<div class="header3">Width(cm)</div>
<input name="width" id="width" type="number">
<div class="header3">Height(cm)</div>
<input name="height" id="height" type="number">
<div id="divide"> </div>
<input value="Submit" id="submit" onclick="calculate();" type="button">
<div class="header3">Volumetric Weight</div>
<input name="total" id="total" readonly="true"></form>

Answer 1

在if(document.getElementById('international').checked)之后缺少花括号应为if(document.getElementById('international').checked){

我无法理解为什么我的表单按钮不会调用我的javascript函数

1 个答案: