需要帮忙！外部JavaScript只是不起作用... [英] NEED HELP! External javascript just won't work...
问题描述
我是编码的初学者，我刚刚尝试制作一个简单的登录页面，其中包含一个链接到它的外部JavaScript ...但是当我启动HTML并单击show按钮时，javascript将无法正常运行。< br $>
HTML代码：
I am a beginner at coding and I just recently tried out making a simple login page with an external javascript linked to it ... But when I start up the HTML and click the show button the javascript won't function.
The HTML CODE:
<HTML>
<HEAD>
<TITLE> Log In | Page </TITLE>
<SCRIPT Type='text/javascript' src="main.js">
</SCRIPT>
</HEAD>
<BODY>
<CENTER>
<FONT Face="Lucida Bright" size="28"> WELCOME
</FONT>
<BR> <BR>
<FORM Name="Mainform">
<FONT Face="Lucida Bright" size="5">
Username
<INPUT Type="text" Name="Usrnm" size="15">
<BR> <BR>
Password
<INPUT Type="password" Name="Usrps" size="15">
<BR> <BR> <BR>
<INPUT Type="button" Name="Login" Value="Show" onclick="event()">
</FONT>
</FORM>
</CENTER>
</BODY>
</HTML>
JAVASCRIPT代码：
The JAVASCRIPT CODE:
function event() {
var usrread= document.Mainform.Usrnm.value;
var pswread= document.Mainform.Usrps.value;
if (usrread.length<=3)
{
alert("Your username must contain at least 4 Characters!");
alert("Wrong Data! Please check again.");
return;
}
if (pswread.lenth<=5)
{
alert("Your password must contain at least 6 Characters!");
alert("Wrong Data! Please check again.");
return;
}
if (isNaN(pswread.charAt(0))==True || isNaN(pswread.charAt(1))==True)
{
alert("The first two characters in the Password must be Numbers!");
alert("Wrong Data! Please check again.");
return;
}
if (usrread.length>=3 && pswread.lenth>=5 && isNaN(pswread.charAt(0))==False
&& isNaN(pswread.charAt(1))==False)
{
alert("Correct Data");
return;
}
}
请帮忙！提前谢谢！
我尝试了什么：
我尝试了在线验证器，它说没有错误。所以我猜必须有一些逻辑错误。如果你能指出这一点，我会很高兴的。 ：）
Please Help! Thank you in advance!
What I have tried:
I tried the online validators, and it says there are no errors. So I guess there must be some logic error. I would be so happy if you would point that out. :)
推荐答案
更改函数名称： JavaScript保留字 [ ^ ]
Change the function name: JavaScript Reserved Words[^]
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