Help Need In Making Assisgnment JavaScript

**soft2050** · 28th Apr 2012, 01:37 PM

Originally Posted by sahil00150

i never tried reg ex
The only thing which is remain is character counting how much letter submitted in input box.

alert box must show counted characters + valid or invalid email + message

Code:

<html>
<head>
<script type="text/javascript">
function CheckMyEmail()
{
var x=document.forms["myForm"]["email"].value;
var value=("BC102034568");
var at=x.indexOf("@");
var dot=x.lastIndexOf("vu.edu.pk");
if (at<1 || dot<at+1 || dot+2>=x.length)
{
alert( x + " is Not your valid VU e-mail address");
return false;
}
else
{
    if(x=="BC102034568@vu.edu.pk")
        {
        alert( x + " is your valid VU e-mail address");
        return false;
        }
else
{
alert( x + " is not an valid email address");
return false;
}
}
}
</script>
</head>

<body>
<form name="myForm" action="example.html" onsubmit="return CheckMyEmail();" method="post">
Email: <input type="text" name="email">
<input type="submit" value="Submit">
</form>
</body>

</html>

you again forgot to make return function well i done it.

if someone submit more then 40 characters email the alert box show email it too much large of some one enter minimum characters like 2 or 3 character alertbox must show email characters are less.

PHP Code:


if (x.length >= 40) {
alert("Too much");
} else if(x.length =< 3) {
//ahh;
alert("Too Less");
} else {
//ok;
}

soft2050 Reviewed by soft2050 on 28th Apr 2012. Help Need In Making Assisgnment JavaScript Hello i got assignment from my university i am not able to make it properly doing some mistakes well got this assignment Make a form in HTML document containing only one field named as Email and one Submit Button. Write your own JavaScript function to validate the email address. The Validation should be as follows: It must accept only your VU Student email address i.e; it must not accept any other student’s VU email address. Rating: 5

**Apathetic** · 28th Apr 2012, 01:32 PM

You should practise indenting your code (and adding comments), it makes your code readable.

**sahil00150** · 28th Apr 2012, 01:35 PM

thanks buddy for your idea i am trying it my self alot actually i love PHP and have knowledge about PHP, i totally forget javascript thats why i am asking here for help.

**sahil00150** · 28th Apr 2012, 01:44 PM

but how i can implement your code in fields ?

Code:

if (x.length >= 40) {
alert("Too much");
} else if(x.length =< 3) {
//ahh;
alert("Too Less");
} else {
//ok;
}

**soft2050** · 28th Apr 2012, 01:47 PM

Before checking any other checks

PHP Code:


<html>
<head>
<script type="text/javascript">
function CheckMyEmail()
{
var x=document.forms["myForm"]["email"].value;

if (x.length >= 40) {
alert("Too much");
} else if(x.length =< 3) {
//ahh;
alert("Too Less");
} else {
//ok;
var value=("BC102034568");
var at=x.indexOf("@");
var dot=x.lastIndexOf("vu.edu.pk");
if (at<1 || dot<at+1 || dot+2>=x.length)
{
alert( x + " is Not your valid VU e-mail address");
}
else
{
    if(x=="BC102034568@vu.edu.pk")
        {
        alert( x + " is your valid VU e-mail address");
        return true;
        }
else
{
alert( x + " is not an valid email address");
}
}
}
return false;
} 

</script>
</head>

<body>
<form name="myForm" action="example.html" onsubmit="return CheckMyEmail();" method="post">
Email: <input type="text" name="email">
<input type="submit" value="Submit">
</form>
</body>

</html>

**sahil00150** · 28th Apr 2012, 01:50 PM

Not worked.............

**soft2050** · 28th Apr 2012, 01:59 PM

Ahh, yeah, a small type in the comparison operator: =<

PHP Code:


<html>
<head>
<script type="text/javascript">
function CheckMyEmail()
{
var x=document.forms["myForm"]["email"].value;

if (x.length >= 40) {
alert("Too much");
} else if(x.length <= 3) {
alert("Too Less");
} else {
//ok;
var value=("BC102034568");
var at=x.indexOf("@");
var dot=x.lastIndexOf("vu.edu.pk");
if (at<1 || dot<at+1 || dot+2>=x.length)
{
alert( x + " is Not your valid VU e-mail address");
}
else
{
    if(x=="BC102034568@vu.edu.pk")
        {
        alert( x + " is your valid VU e-mail address");
        return true;
        }
else
{
alert( x + " is not an valid email address");
}
}
}
return false;
} 

</script>
</head>

<body>
<form name="myForm" action="example.html" onsubmit="return CheckMyEmail();" method="post">
Email: <input type="text" name="email">
<input type="submit" value="Submit">
</form>
</body>

</html>

Help Need In Making Assisgnment JavaScript

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