Javascript: script that checks an entered Email address

Who I am
Lluis Enric Mayans
@lluisenricmayans
Author and references

Here is a simple function for the control of the validity of the e-email inserted in form.

Script that checks an entered Email address

 



function controllaemail(email)
{

var snail = false
var point = false
var puntochiocciola = false

for (var i = 0; i <= email.length; i ++) {

if (email.charAt(i) == “@”){



at sign = true

puntochiocciola = email.indexOf(email.charAt(i)) + 1

break
}
}

for (var i = 0; i <= email.length; i ++)
{

if (puntochiocciola && email.charAt(i) == “.” && i > (email.length – 4) && i < (email.length – 2))
{
var point = true
break }

else {

if (! hazelnut && email.charAt (i) == “.” && i> hazelnut && i <(email.length - 2))
{
var point = true
break
}

}

}

if (! at sign ||! period) {
var error = (! at &&! period)? "Both the dot and the snail are missing." : (period == true &&! at sign)? "The snail is missing." : (at sign == true &&! period)? "The point is missing." : ""
window.alert ("Beware of the email address you typed" + error)


}

}


Check email



Enter an e-mail address:

</form>


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