Alert works and sweetalert does not

Question

Alert works and sweetalert does not

Asked 9 years, 1 month ago

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1

I’m trying to use sweetalert to give an alert of "Submitted".

if($rstSql["cod_erro"] == 0)
{
    echo '<script> swal("Good job!", "You clicked the button!", "success"); <script>';
}
else
{
   echo '<script>alert("message2");</script>';   
}

Apparently the standard alert works, while the SWAL doesn’t. I tested on another page and called normally, libraries are being called on:

<script src="swap/sweet-alert.js"></script> 
<link rel="stylesheet" type="text/css" href="swap/sweet-alert.css">

When I debug Chrome I have the following message:

Uncaught Typeerror: Cannot read Property "prototype'of Undefined>

Which @Felipe line is this error (in the console speaks the line). Could post an example of the problem in jsfiddle?

– Guilherme Nascimento

2015/09/22 at 17:57
In the code, the error appears only in the line I call swal, which I have already posted above. However, I get error in some lines of the Sweetalert library: Uncaught Typeerror? Cannot call method 'appendchild' of null. The funny thing is that I use the same library in a clean file and this one works.

– Felipe

2015/09/23 at 13:10
You put <script src="swap/sweet-alert.js"></script> inside <head> and if($rstSql["cod_erro"] == 0)
{
 echo '<script> swal("Good job!", "You clicked the button!", "success"); <script>';
}
else
{
 echo '<script>alert("message2");</script>'; 
} inside <body>???

– Guilherme Nascimento

2015/09/25 at 02:05

1 answer

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by Nikofoxxx • **411** points · Answer 1 · 2015-09-22T19:07:22+00:00

Good afternoon! I joined the Sweetalert website (http://t4t5.github.io/sweetalert/), I opened the browser console and typed the same line you commented on above, I mean:

swal("Good job!", "You clicked the button!", "success");

I did it to know if it was not a mistake of some parameter that you had passed or something, but it worked correctly! So apparently Sweetalert’s Javascript is ok!

I went back to read your post, and I noticed that you give an echo, but you’re not closing the tag <script>.

Please try to replace this line:

echo '<script> swal("Good job!", "You clicked the button!", "success"); <script>';

For that reason:

echo '<script> swal("Good job!", "You clicked the button!", "success"); </script>';

And please give us the answer if it worked.