我只是尝试使用所选选项的值进行简单计算,但是我得到错误的结果: pickUp 9和returnTime 10,它给出no(必须是yea)
但是 pickUp时间11和returnTime 14,它给出了yea(这是正确的)所以它给出了一些特定数字和一些数字的正确结果..
这是(pickUp)选择选项:
<select id="ophalenUur" class="timePicker selectOption">
<option value="-">Kies Tijd</option>
<option value="8">08.00</option>
<option value="8.5">08.30</option>
<option value="9">09.00</option>
<option value="9.5">09.30</option>
<option value="10">10.00</option>
<option value="10.5">10.30</option>
<option value="11">11.00</option>
<option value="11.5">11.30</option>
<option value="12">12.00</option>
<option value="12.5">12.30</option>
<option value="13">13.00</option>
<option value="13.5">13.30</option>
<option value="14">14.00</option>
<option value="14.5">14.30</option>
<option value="15.">15.00</option>
<option value="15.5">15.30</option>
<option value="16">16.00</option>
<option value="16.5">16.30</option>
<option value="17">17.00</option>
<option value="17.5">17.30</option>
<option value="18">18.00</option>
<option value="18.5">18.30</option>
<option value="19">19.00</option>
<option value="19.5">19.30</option>
<option value="20">20.00</option>
</select>
和js:
var pickUp = 0;
var returnTime =0;
$('#ophalenUur').change(function() {
pickUp = $('#ophalenUur option:selected').val();
$('.pickUp').text("PickUp: " + pickUp);
});
$('#inleverenUur').change(function() {
returnTime = $('#inleverenUur option:selected').val();
$('.returntime').text("return: " + returnTime);
if(returnTime > pickUp){ alert("yea");
} else { alert("no"); }
});
小提琴:http://jsfiddle.net/jLAaq/27/
这里有什么问题?我正在寻找几个小时,我看不到:/
答案 0 :(得分:2)
因为你正在进行字符串比较
var pickUp = 0;
var returnTime = 0;
var totalExtra = 0;
$('#ophalenUur').change(function () {
//conver the value string to number by prfixing it with + or you can use parseFloat(this.value)
pickUp = +this.value;
$('.pickUp').text("PickUp: " + pickUp);
});
$('#inleverenUur').change(function () {
returnTime = +this.value;
$('.returntime').text("return: " + returnTime);
if (returnTime > pickUp) {
alert("yea");
} else {
alert("no");
}
});
演示:Fiddle
答案 1 :(得分:1)
我认为原因可能是returnTime而pickUp是字符串。所以“9”&gt;“10”。 尝试使用parseFloat函数来解析returnTime和pickUp。
答案 2 :(得分:1)
您将整数作为字符串进行比较。您可以使用parseFloat
方法
<强> Demo Link 强>
<强> CODE:
强>
var pickUp = 0;
var returnTime =0;
var totalExtra = 0;
$('#ophalenUur').change(function() {
pickUp = $('#ophalenUur option:selected').val();
$('.pickUp').text("PickUp: " + pickUp);
});
$('#inleverenUur').change(function() {
returnTime = $('#inleverenUur option:selected').val();
$('.returntime').text("return: " + returnTime);
if(parseFloat(returnTime) > parseFloat(pickUp)){
alert("yea");
}else{
alert("no");
}
});