Question

我在下面收到一个javascript错误，但我似乎无法找到问题：

*留言：预计'）' 行：431 查尔：220 代码：0

URI: http://mywebsite/CustomerLogin.aspx*

第431行是这个javascript行：

<script language='Javascript'>
    var varDateNow = new Date();
    var varTimeNow = varDateNow.getTime();
    var varAlertTime = document.getElementById('cphTopContent_AlertTime').value;
    if(varTimeNow - varAlertTime < 1500)
        {alert('2' values you entered were not valid:\n\nLog In -  This value requires at least 6 characters. \nPassword -  This value requires at least 4 characters. \n');}
</script>

导致javascript错误的原因是什么？

Answer 1

你缺少公开引用。尝试在警报中的2后取出关闭引号。以下是幕后发生的事情：由于您在2之后关闭了引号，因此您实际上在\n之后打开一行新的引号。因此，编译器将该点后面的所有内容解释为字符串，因此它永远不会找到右括号。

Answer 2

<script language='Javascript'>
    var varDateNow = new Date();
    var varTimeNow = varDateNow.getTime();
    var varAlertTime = document.getElementById('cphTopContent_AlertTime').value;
    if(varTimeNow - varAlertTime < 1500)
        {alert('2 values you entered were not valid:\n\nLog In -  This value requires at least 6 characters. \nPassword -  This value requires at least 4 characters. \n');}
</script>

Answer 3

{alert('2' values you entered were not valid:\n\nLog In -  This value requires at least 6 characters. \nPassword -  This value requires at least 4 characters. \n');}

应该是

{ alert("2 values you entered were not valid:\n\nLog In -  This valid requires at least 6 characters.\nPassword -  This value requires at least 4 charactersn\n"); }

你弄乱了一些引号，所以应该结束alert（）的括号实际上是一个字符串。

Answer 4

警报消息必须是字符串。因此，在'2'之后，它只是不明白你想要对所有的字符和东西做什么。

alert("blah blah '2' more blah and blah " + variableSomething + "finalBlah");

Javascript错误：消息：预期'）'

4 个答案: