我为estimateCost得到了未被捕获的类型错误，我也有如何与配偶加倍价格的问题。我想有一个警报窗口，根据城市，天数和其他选项的选择显示估算成本。 TY！
<html>
<head>
<script language="JavaScript">
var city_prices = new Array();
city_prices["New York City"] = 0;
city_prices["Boston"] = 0;
city_prices["San Francisco"] = 200;
city_prices["Los Angeles"] = 200;
// getCityPrice() finds the price based on the city .
// Here, we need to take user's the selection from radio button selection
function getCityPrice() {
var cityPrice = 0;
//Get a reference to the form id="cakeform"
var theForm = document.forms["form1"];
//Get a reference to the cake the user Chooses name=radCity":
var selectedCity = theForm.elements["radCity"];
//Here since there are 4 radio buttons selectedCity.length = 4
//We loop through each radio buttons
for (var i = 0; i < selectedCity.length; i++) {
//if the radio button is checked
if (selectedCity[i].checked) {
//we set cityPrice to the value of the selected radio button
//i.e. if the user choose NYC we set to 0
//by using the city_prices array
//We get the selected Items value
//For example city_prices["New York City".value]"
cityPrice = city_prices[selectedCity[i].value];
//If we get a match then we break out of this loop
//No reason to continue if we get a match
break;
}
}
//We return the cityPrice
return cityPrice;
}
var number_days = new Array();
number_days["3"] = 450;
number_days["4"] = 600;
number_days["5"] = 750;
number_days["6"] = 900;
number_days["7"] = 1050;
number_days["8"] = 1350;
number_days["9"] = 1500;
number_days["10"] = 1650;
number_days["11"] = 1800;
number_days["12"] = 1950;
number_days["13"] = 2100;
number_days["14"] = 2250;
number_days["15"] = 2400;
//This function finds the day price based on the
//drop down selection
function getDayPrice() {
var dayPrice = 0;
//Get a reference to the form id="form1"
var theForm = document.forms["form1"];
//Get a reference to the select id="selNumberDays"
var selectedDays = theForm.elements["selNumberDays"];
//set dayPrice equal to value user chose
//For example number_days["3".value] would be equal to 450
dayPrice = number_days[selectedDays.value];
//finally we return dayPrice
return dayPrice;
}
//chksFirst() finds the candles price based on a check box selection
function chksFirst() {
var chkFirst = 0;
//Get a reference to the form id="form1"
var theForm = document.forms["form1"];
//Get a reference to the checkbox id="chkFirst"
var includeFirst = theForm.elements["chkFirst"];
//If they checked the box set first class to 500
if (includeFirst.checked == true) {
chkFirst = 500;
}
//finally we return the firstClass
return chkFirst;
}
//chksSpouse() finds the candles price based on a check box selection
function chksSpouse() {
var chkSpouse = 0;
//Get a reference to the form id="form1"
var theForm = document.forms["form1"];
//Get a reference to the checkbox id="chkSpouse"
var includeSpouse = theForm.elements["chkSpouse"];
//If they checked the box set Total 2x
if (includeSpouse.checked == true) {
totalPrice = totalPrice * 2;
}
//finally we return the firstClass
return totalPrice;
}
function estimateCost() {
//Here we get the estimate price by calling our function
//Each function returns a number so by calling them we add the values they return together
var totalPrice = getCityPrice() + getDayPrice() +
chksFirst() + chksSpouse();
alert(totalPrice);
}
</script>
</head>
<body>
<table align="left" width="600px" border="0" cellpadding="5px">
<tr>
<td>
<form name="form1" id="form1">
<table border="0">
<tr>
<td width="300px"><strong>Last Name: </strong>
</td>
<td width="300px">
<input type="text" name="txtFirstName" value=" " size="20" />
</td>
</tr>
<tr>
<td><strong>First Name: </strong>
</td>
<td>
<input type="text" name="txtLastName" value=" " size="20" />
</td>
</tr>
<tr>
<td><strong>Nationality: </strong>
</td>
<td>
<select name="selNationality">
<option value="amer">USA</option>
<option value="can">Canada</option>
<option value="mex">Mexico</option>
<option value="ger">Germany</option>
<option value="fra">France</option>
</select>
</td>
</tr>
<tr>
<td><strong>City you wish to visit: </strong>
</td>
<td>
<input type="radio" name="radCity" value="New York City" />New York City
<br />
<input type="radio" name="radCity" value="Boston" />Boston
<br />
<input type="radio" name="radCity" value="San Francisco" />San Francisco ($200 surcharge)
<br />
<input type="radio" name="radCity" value="Los Angeles" />Los Angeles ($200 surcharge)
<br/>
</td>
</tr>
<tr>
<td><strong>Number of days ($150 per day): </strong>
</td>
<td>
<select name="selNumberDays" id="selNumberDays">
<option value="3">3</option>
<option value="4">4</option>
<option value="5">5</option>
<option value="6">6</option>
<option value="7">7</option>
<option value="8">8</option>
<option value="9">9</option>
<option value="10">10</option>
<option value="11">11</option>
<option value="12">12</option>
<option value="13">13</option>
<option value="14">14</option>
<option value="15">15</option>
</td>
</tr>
<tr>
<td><strong>Other options: </strong>
</td>
<td>
<input type="checkbox" name="chkFirst" id="chkFirst" />First Class Only ($500 surcharge)
<br />
<input type="checkbox" name="chkSpouse" id="chkSpouse" />Traveling with Spouse (All costs doubled)
<br />
</td>
</tr>
<tr>
<td align="right">
<input type="button" value="Give me an estimate!" onClick="estimateCost()" id="estimateCost" />
</td>
<td align="left">
<input type="reset" />
</td>
</tr>
</table>
</form>
</td>
</tr>
</table>
</body>
</html>
答案 0 :(得分：1)
在带有onClick="estimateCost()"代码的按钮输入上，移除id="estimateCost"。由于某种原因导致错误。您应该使用onClick侦听器，而不是内联onclick：
Inline onclick JavaScript variable
对于配偶的总数，您可能希望将其重新编写为类似的地方，将配偶前的价格传递给chksSpouse函数，并将其作为总价格使用。
//chksSpouse() finds the candles price based on a check box selection
function chksSpouse(totalPrice) {
var chkSpouse = 0;
//Get a reference to the form id="form1"
var theForm = document.forms["form1"];
//Get a reference to the checkbox id="chkSpouse"
var includeSpouse = theForm.elements["chkSpouse"];
//If they checked the box set Total 2x
if (includeSpouse.checked == true) {
totalPrice = totalPrice * 2;
}
//finally we return the firstClass
return totalPrice;
}
function estimateCost() {
//Here we get the estimate price by calling our function
//Each function returns a number so by calling them we add the values they return together
var preSpouseTotal = getCityPrice() + getDayPrice() + chksFirst();
var totalPrice = chksSpouse(preSpouseTotal);
alert(totalPrice);
}