Question

我正在使用javascript验证验证我的表单，但它无法正常工作，因为我在控制台屏幕上看到错误

“base.js：35 Uncaught SyntaxError：意外的标识符”。

我的javascript如下：

var user = {
signup : function() {
    var firstname = document.signupform.first_name.value;
    var email = document.signupform.email.value;
    var password = document.signupform.password.value;
    var confirmpassword = document.signupform.confirmpassword.value;
    if (firstname == "")
    {
        alert("Please provide first name!")
        document.signupform.first_name.focus();
    }
    else if (!validateEmail())
    {
        alert("Please provide valid email!")
        document.signupform.email.focus() ;
    }
    else if (password == "")
    {
        alert("Please enter a valid password")
        document.signupform.password.focus() ;
    }
    else if (password != confirmPassword) 
    {
        alert("Passwords do not match.");
        document.signupform.confirmpassword.focus() ;
    }
    else
    {
        return true
    }
    return false
}

validateEmail : function()
{
    var emailID = document.signupform.email.value;
    atpos = emailID.indexOf("@");
    dotpos = emailID.lastIndexOf(".");
    if (atpos < 1 || ( dotpos - atpos < 2 )) 
    {
        return false;
    }
    return true;
    },
}

Answer 1

,之前，您的代码似乎丢失validateEmail 你应该在最后删除,

正如@nnnnnn在下面的评论中提到的那样，使用validateEmail()将无效 - 请将其替换为this.validateEmail()

请注意，您验证电子邮件的方法不是很好，也传递了无效的电子邮件地址

Answer 2

使用以下代码

var user = {
signup : function() {
    var firstname = document.signupform.first_name.value;
    var email = document.signupform.email.value;
    var password = document.signupform.password.value;
    var confirmpassword = document.signupform.confirmpassword.value;
    if (firstname == "")
    {
        alert("Please provide first name!")
        document.signupform.first_name.focus();
    }
    else if (!validateEmail())
    {
        alert("Please provide valid email!")
        document.signupform.email.focus() ;
    }
    else if (password == "")
    {
        alert("Please enter a valid password")
        document.signupform.password.focus() ;
    }
    else if (password != confirmPassword) 
    {
        alert("Passwords do not match.");
        document.signupform.confirmpassword.focus() ;
    }
    else
    {
        return true;
    }
    return false;
},
validateEmail : function()
{
    var emailID = document.signupform.email.value;
    atpos = emailID.indexOf("@");
    dotpos = emailID.lastIndexOf(".");
    if (atpos < 1 || ( dotpos - atpos < 2 )) 
    {
        return false;
    }
    return true;
}

};

javascript电子邮件验证无效

2 个答案: