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Validate email address in Javascript?

我必须对电子邮件格式进行验证,我利用下文的CODE来限制特别特征。

onkeypress="return AlphaNumericBox(event,this, @._);"

But now the Problem is I don have any proper validation for the exact format for example its also accepting text like " @abcd.com.gmail,.. " Is there any javascript validation for this? any idea?

提前感谢。

Answer 1

function CheckEmail(address){
    address=address.replace(/(^s*)|(s*$)/g, "");
    var reg=/([w._-])+@([w_-])+(.([w_-])+){1,2}/;
    var matcharr=reg.exec(address);
    if(matcharr!=null){
        if(matcharr[0].length==address.length){
            return true;
        }
        return false;
    }
    return false;
}

eg:
var sVal=" [email protected] ";
var sVal2=" [email protected] ";
console.log(CheckEmail("[email protected]"));    //outpus true
console.log(CheckEmail("@server.com"));   //outpus false

Answer 2

我建议你利用这一职能。我多次测试了它。

function validateEmail (emailAddress) {
        var pattern = new RegExp(/^(("[w-s]+")|([w-]+(?:.[w-]+)*)|("[w-s]+")([w-]+(?:.[w-]+)*))(@((?:[w-]+.)*w[w-]{0,66}).([a-z]{2,6}(?:.[a-z]{2})?)$)|(@[?((25[0-5].|2[0-4][0-9].|1[0-9]{2}.|[0-9]{1,2}.))((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2}).){2}(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[0-9]{1,2})]?$)/i);
        return pattern.test(emailAddress);
}

现在,你可以轻易地验证任何电子邮件地址:

var isValid = validateEmail( [email protected] ); // returns true;
isValid = validateEmail( @server.com ); // returns false;

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