我是Javascript编程的初学者，遇到了一个我无法理解的错误，因为我不懂代码。 Lint告诉我在排队var dString = "September, 25, 2015";之前需要一个半结肠。我确实有这个工作，不知道我改变了什么。我从this问题得到了代码。
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<html>
<head>
<title>
Saving
</title>
</head>
<body>
<script>
function myFunction() {
if (txtMoneySaved.value !== "" && !isNaN(txtMoneySaved.value) && txtMoneyGoal.value !== "" && !isNaN(txtMoneyGoal.value)) {
// It's a number
numValue = parseFloat(txtMoneySaved.value);
DollarGoal = parseFloat(txtMoneyGoal.value);
document.getElementById("demo").innerHTML = numValue;
var DateDiff = {
inDays: function(d1, d2) {
var t2 = d2.getTime();
var t1 = d1.getTime();
return parseInt((t2 - t1) / (24 * 3600 * 1000), 10);
},
inWeeks: function(d1, d2) {
var t2 = d2.getTime();
var t1 = d1.getTime();
return parseInt((t2 - t1) / (24 * 3600 * 1000 * 7), 10);
},
inMonths: function(d1, d2) {
var d1Y = d1.getFullYear();
var d2Y = d2.getFullYear();
var d1M = d1.getMonth();
var d2M = d2.getMonth();
return (d2M + 12 * d2Y) - (d1M + 12 * d1Y);
},
inYears: function(d1, d2) {
return d2.getFullYear() - d1.getFullYear();
}
}
var dString = "September, 25, 2015";
var d1 = new Date();
var d2 = new Date(dString);
var DolsDay = (DollarGoal - numValue) / DateDiff.inDays(d1, d2);
var DolsWeek = (DollarGoal - numValue) / DateDiff.inWeeks(d1, d2);
var DolsMonth = (DollarGoal - numValue) / DateDiff.inMonths(d1, d2);
document.getElementById("DaysRemaining").innerHTML = "Number of <b>days</b> until " + dString + "<b>:</b> " + DateDiff.inDays(d1, d2) + "<br>Dollars per day to reach $8000<b>:</b> $" + DolsDay.ToFixed(2);
document.getElementById("WeeksRemaining").innerHTML = "Number of <b>weeks</b> until " + dString + "<b>:</b> " + DateDiff.inWeeks(d1, d2) + "<br>Dollars per week to reach $8000<b>:</b> $" + DolsWeekToFixed(2);
document.getElementById("MonthsRemaining").innerHTML = "Number of <b>months</b> until " + dString + "<b>:</b> " + DateDiff.inMonths(d1, d2) + "<br>Dollars per month to reach $8000<b>:</b> $" + DolsMonthToFixed(2);
}
//else some error message
}
</script>
Enter the amount saved: <input type="text" name="Saved" id="txtMoneySaved" value="100"> Enter the goal amount: <input type="text" name="Goal" id="txtMoneyGoal" value="8000">
<button onclick="myFunction()">Try it</button>
<p id="demo"></p>
<p id="DaysRemaining"></p>
<p id="WeeksRemaining"></p>
<p id="MonthsRemaining"></p>
<p id="YearsRemaining"></p>
</body>
</html>分号是可选的。忽略那个警告，这不是你的问题。
你有几个拼写错误：
DolsDay.ToFixed(2)应该是DolsDay.toFixed(2)。方法名称区分大小写.之前忘记了ToFixed，并且还应该使用小写的t。document.getElementById("DaysRemaining").innerHTML = "Number of <b>days</b> until "+dString+"<b>:</b> "+DateDiff.inDays(d1, d2)+"<br>Dollars per day to reach $8000<b>:</b> $"+DolsDay.toFixed(2);
document.getElementById("WeeksRemaining").innerHTML = "Number of <b>weeks</b> until "+dString+"<b>:</b> "+DateDiff.inWeeks(d1, d2)+"<br>Dollars per week to reach $8000<b>:</b> $"+DolsWeek.toFixed(2);
document.getElementById("MonthsRemaining").innerHTML = "Number of <b>months</b> until "+dString+"<b>:</b> "+DateDiff.inMonths(d1,d2)+"<br>Dollars per month to reach $8000<b>:</b> $"+DolsMonth.toFixed(2);
固定的例子，仍然没有（可选，但很好的可读性）分号：http://codepen.io/paulroub/pen/Lbkno
...inYears: function(d1, d2){
return d2.getFullYear()-d1.getFullYear();
}
}; //This should have the semicolon
var dString = "September, 25, 2015";
我将您的Javascript代码复制到here。它告诉我哪一行缺少分号。您可能希望将来使用此工具。
31 }
32 }; // missing semi-colon
33
34 var dString = "September, 25, 2015";
================^
lint warning: missing semicolon
35
36 var d1 = new Date();
请注意，许多错误发生在指定的行号之前。在这种情况下，你在第32行后缺少一个分号。