function problem

lofaifa · December 2, 2011

this :

function validateForm()

{

var r_n=document.forms["regist"]["regist_name"].value;

var r_p1=document.forms["regist"]["regist_password1"].value;

var r_p2=document.forms["regist"]["regist_password2"].value;

var r_email=document.forms["regist"]["regist_email"].value;

if (r_n==null || r_n=="" )

{

var reg_n="username box left empty , please try again !<br/>";

}

else if (r_p1==null || r_p1=="" || r_p2==null || r_p2=="")

{

var reg_p="one of the password boxes left empty , please try again !<br/>";

}

else if (r_email==null || r_email=="")

{

var reg_email="e-mail box left empty , please try again!<br/>";

}

else if (r_p1!==r_p2)

{

var reg_p_m="rewrite your passwords , they dont match!<br/>";

}

if(reg_n!==null|| reg_p!==null || reg_email!==null || reg_p_m!==null || reg_n!=="" || reg_p!=="" || reg_email!=="" || reg_p_m!=="")

{

document.getElementById("reg_name").innerHTML=reg_n;

document.getElementById("reg_password").innerHTML=reg_p;

document.getElementById("reg_email").innerHTML="reg_email + reg_p_m";

return false;

}

returns always TRUE .

what to do ?

December 2, 2011

Sorry, I don't use much pure javascript, but this doesn't look right.

if(reg_n!==null|| reg_p!==null || reg_email!==null || reg_p_m!==null || reg_n!=="" || reg_p!=="" || reg_email!=="" || reg_p_m!=="")

Should you be using Logical AND and also being using '!=' not '!=='

Hopefully, I helped. :shrug:

try

if(reg_n != null && reg_p != null && reg_email != null && reg_p_m != null && reg_n != "" && reg_p != "" && reg_email != "" && reg_p_m != "")

haku · December 3, 2011

also being using '!=' not '!=='

!= Checks that the values are equal. !== checks that the value AND type are equal. It's actually better to use !==, but this is more difficult as it requires paying more attention to what dataype your variables are holding. Many people have a difficult time doing this.

haku · December 3, 2011

function validateForm()
{
  var r_n, r_p1, r_p2, r_email,  reg_n, reg_p, reg_email, reg_pm;
  
  r_n=document.forms["regist"]["regist_name"].value;
  r_p1=document.forms["regist"]["regist_password1"].value;
  r_p2=document.forms["regist"]["regist_password2"].value;
  r_email=document.forms["regist"]["regist_email"].value;

  if (!r_n || r_n == "" )
  {
    reg_n="username box left empty , please try again !<br/>";
  }
  if (!r_p1 || r_p1 == "" || !r_p2 || r_p2 == "")
  {
    reg_p="one of the password boxes left empty , please try again !<br/>";
  }
  if (r_email==null || r_email=="")
  {
    reg_email="e-mail box left empty , please try again!<br/>";
  }
  else if (r_p1 !== r_p2)
  {
    reg_p_m="rewrite your passwords , they dont match!<br/>";
  }
  if(reg_n !== "" || reg_p !== "" || reg_email !== "" || reg_p_m !== "")
  {
    document.getElementById("reg_name").innerHTML=reg_n;
    document.getElementById("reg_password").innerHTML=reg_p;
    document.getElementById("reg_email").innerHTML="reg_email + reg_p_m";
    return false;
  }
}

lofaifa · December 3, 2011

still doesnt work .. this is the form

<p>Your Username: <input type="text" name="regist_name" /></p>

<p>Your Password: <input type="password" name="regist_password1" /></p>

<p>Repeat Password: <input type="password" name="regist_password2" /></p>

December 3, 2011

document.getElementById("reg_name").innerHTML=reg_n;
    document.getElementById("reg_password").innerHTML=reg_p;
    document.getElementById("reg_email").innerHTML="reg_email + reg_p_m";

What are you doing here..? There is no element with the id = to "reg_name" I'm getting a null error.

I think you should re-write this function.

lofaifa · December 3, 2011

i just didnt give u the full html code , its actually like this :

<html>
<head>
<script type="text/javascript" src="javascript/reg_validation.js"></script>
<title>Registration</title>
</head>
<body>
<p>please fill up your informations :</p>
<p id="reg_username" style="color:red">
<p id="reg_password" style="color:red">
<p id="reg_email" style="color:red">
<p id="error" style="color:red;"></p><br/> 

<form name="regist" action="proc/regist_proc.php" onsubmit="return validateForm()" method="post">
<p>Your Username:   <input type="text" name="regist_name" /></p>
<p>Your Password:   <input type="password" name="regist_password1" /></p>
<p>Repeat Password: <input type="password" name="regist_password2" /></p>
<p>Your E-mail:     <input type="text" name="regist_email"/></p>
<input type="submit" value="Register">
<a href="index.php">Or go Back</a>
</form>
</body>
</html>

And the JavaScript function is :

function validateForm()
{
  var r_n, r_p1, r_p2, r_email,  reg_n, reg_p, reg_email, reg_pm;
  
  var r_n=document.forms["regist"]["regist_name"].value;
  var r_p1=document.forms["regist"]["regist_password1"].value;
  var r_p2=document.forms["regist"]["regist_password2"].value;
  var r_email=document.forms["regist"]["regist_email"].value;

  if (!r_n || r_n == "" )
  {
    reg_n="username box left empty , please try again !<br/>";
  }
  if (!r_p1 || r_p1 == "" || !r_p2 || r_p2 == "")
  {
    reg_p="one of the password boxes left empty , please try again !<br/>";
  }
  if (r_email==null || r_email=="")
  {
    reg_email="e-mail box left empty , please try again!<br/>";
  }
  else if (r_p1 !== r_p2)
  {
    reg_p_m="rewrite your passwords , they dont match!<br/>";
  }
  if(reg_n !== "" || reg_p !== "" || reg_email !== "" || reg_p_m !== "")
  {
    document.getElementById("reg_name").innerHTML=reg_n;
    document.getElementById("reg_password").innerHTML=reg_p;
    document.getElementById("reg_email").innerHTML="reg_email + reg_p_m";
    return false;
  }
}

OR :

function validateForm()
{
var reg_n="";
var reg_p="";
var reg_p_m="";   
var reg_email="";
var r_n=document.forms["regist"]["regist_name"].value;
var r_p1=document.forms["regist"]["regist_password1"].value;
var r_p2=document.forms["regist"]["regist_password2"].value;
var r_email=document.forms["regist"]["regist_email"].value;

if (r_n==null || r_n=="" ) 
{reg_n="username box left empty , please try again !<br/>";
}
if (r_p1==null || r_p1=="" || r_p2==null || r_p2=="")
{reg_p="one of the password boxes left empty , please try again !<br/>";
}
if (r_email==null || r_email=="")
{reg_email="e-mail box left empty , please try again!<br/>";
}
if (r_p1!==r_p2)
{reg_p_m="rewrite your passwords , they dont match!<br/>";
}
if(reg_n!=="" || reg_p!=="" || reg_p_m!=="" || reg_email!=="")
{
document.getElementById("reg_username").innerHTML=reg_n;
document.getElementById("reg_password").innerHTML=reg_p + reg_p_m ;
document.getElementById("reg_email").innerHTML=reg_email;
return false;
}
}

lofaifa · December 3, 2011

is ajax a more obv option to do this ?? cuz im really angry about this .. it worked for me for like 2 hours back then and then when i loaded the page for the last time it didnt work again and i didnt even touch the syntax of it !

haku · December 3, 2011

reg_name != reg_username

Fix the above problem, and your problem should be fixed.

lofaifa · December 3, 2011

showed the error then moved to another page ..

haku · December 3, 2011

You're welcome for the assistance by the way. I thought I should say so since you were so gracious with your appreciation.

function validateForm()
{
  var r_n, r_p1, r_p2, r_email,  reg_n, reg_p, reg_email, reg_pm;
  
  r_n=document.forms["regist"]["regist_name"].value;
  r_p1=document.forms["regist"]["regist_password1"].value;
  r_p2=document.forms["regist"]["regist_password2"].value;
  r_email=document.forms["regist"]["regist_email"].value;

  if (!r_n.length)
  {
    reg_n="username box left empty , please try again !";
  }
  if (!r_p1.length || !r_p2.length)
  {
    reg_p="one of the password boxes left empty , please try again !";
  }
  if (!r_email.length)
  {
    reg_email="e-mail box left empty , please try again!";
  }
  else if (r_p1 !== r_p2)
  {
    reg_p_m="rewrite your passwords , they dont match!";
  }
  if(reg_n.length || reg_p.length || reg_email.length || reg_p_m.length)
  {
    document.getElementById("reg_username").innerHTML = reg_n;
    document.getElementById("reg_password").innerHTML = reg_p;
    document.getElementById("reg_email").innerHTML= "reg_email + reg_p_m";
    return false;
  }
}

lofaifa · December 3, 2011

i prefer giving back the favor rather than saying thanks

i apologize if u thought im rude because of that and u should know i appreciate every things uv done ..

u and spring .

lofaifa · December 3, 2011

and there is something wrong : the erorrs display like this

username box left empty , please try again !

one of the password boxes left empty , please try again !

reg_email + reg_p_m

Sign In

function problem

Recommended Posts

Link to comment

Share on other sites

Guest

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Guest

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Link to comment

Share on other sites

Archived

Important Information