Problem with script execution in Safari - javascript

I had a problem with some functionality working in all browsers except for Safari, and I have reduced the problem down to this.
In my page I have the following script declarations at the end of my body element:
<script type="text/javascript" src="../../Scripts/jquery-1.5.1.min.js"></script>
<script type="text/javascript" src="../../Scripts/jquery-ui-1.8.11.min.js"></script>
<script type="text/javascript" src="../../Scripts/jquery.ui.autocomplete.html.js"></script>
<script type="text/javascript" src="../../Scripts/jquery.validate.min.js"></script>
<script type="text/javascript" src="../../Scripts/jquery.textchange.min.js"></script>
<script type="text/javascript" src="../../Scripts/jquery.reveal.js"></script>
<script type="text/javascript" src="../../Scripts/mainScript.js"></script>
Then inside the mainScript.js file, I have put the following code:
$(function () {
alert("found");
});
In all other browsers, it displays a message box, but in Safari it does nothing.
Safari's javascript debugger lists the script, and can see the contents, but for some reason it's not included.
I found this problem since I tried to call a function in mainScript.js from an inline script inside the html page (the inline script was defined below the mainScript.js definition), and the Safari debugger complained that the function was not found anywhere.
What have I done wrong here, and why does not Safari include this script. All the jquery scripts are included and are working fine.

Your code seems good.
I tried with this code
<!DOCTYPE html>
<html>
<head>
<title>Test</title>
</head>
<body>
<h1>Test</h1>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.5.0/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
$(function () {
alert("Test");
});
</script>
</body>
</html>
and it works fine (Safari 5.0.5 7533.21.1 on Windows 7).
A couple of questions:
Have you tried calling your function manually from the Error Console? Does it work?
If you place a simple alert("Test."); outside of the document ready function, is it displayed?
If you call jQuery's function from the Error Console, what do you get? Do they work?

The problem was found elsewhere in mainScript.js.
{ class: 'someclass' } was sent as parameter to some method, and class is a reserved word.
This should probably have given errors in other browsers as well, but they gladly ignored it and kept on going.
The fix was simply to change it to { 'class': 'someclass' }

Related

jQuery selector not working in script but works in console

this is a very odd problem indeed and I hope it's simple. I cannot get a simple select and append to work in my html document, but it works when I'm in the chrome browser console.
<html>
<head>
<script src="https://code.jquery.com/jquery-1.12.3.min.js" integrity="sha256-aaODHAgvwQW1bFOGXMeX+pC4PZIPsvn2h1sArYOhgXQ=" crossorigin="anonymous"></script>
<script src="/js/script.js"></script>
<script>
$('[data-js="works"]').append("hello");
</script>
</head>
<body>
<div data-js="works"></div>
test
</body>
</html>
When I put that line of script in the console, hello appears above test. When I just open the page, test is there alone. I was running a script from this page earlier and when I tried to select an element it didn't work. I then went to inline script to see if it would even work there, no. I've seen if it works from inline script without the imported script, also no. Console has no bug information. I can print from that inline script to my console if I want, but this code still isn't running properly.
Doesn't work with my local httpserver and doesn't work just as a locally opened file.
This is because the script is executed before the page is loaded so the target div does not exist yet.
The solution is to wait for the page to be fully loaded before doing something.
The $ function can be used for this. Give it a callback and it will be executed once the page is loaded.
You can also use window.addEventListener("load", callback); that doesn't need jQuery.
<html>
<head>
<script src="https://code.jquery.com/jquery-1.12.3.min.js" integrity="sha256-aaODHAgvwQW1bFOGXMeX+pC4PZIPsvn2h1sArYOhgXQ=" crossorigin="anonymous"></script>
<script>
$(function(){
$('[data-js=works]').append("hello");
});
</script>
</head>
<body>
<div data-js="works"></div>
test
</body>
</html>
Another solution can be to insert your script at the end of the page. It is not as neat though in my opinion.
<html>
<head>
<script src="https://code.jquery.com/jquery-1.12.3.min.js" integrity="sha256-aaODHAgvwQW1bFOGXMeX+pC4PZIPsvn2h1sArYOhgXQ=" crossorigin="anonymous"></script>
</head>
<body>
<div data-js="works"></div>
test
<script>
$('[data-js=works]').append("hello");
</script>
</body>
</html>
Try the following, hope it will solve your problem
(function($) { // This will solve namespace problem (if any)
// Write your JQuery code here
})(jQuery);
Either you put the .js file at the end of the body or put your JS code between $(document).ready(function(){ //code inside })

Javascript Not Working in HTML - In a Variety of Ways

Is it possible to load javascript without jQuery? I spent the better portion of yesterday evening simply trying to create the most basic HTML page with working CSS and Javascript and - despite the numerous methods I have tried - none of them have worked. Here is my basic HTML page:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>title</title>
<link rel="stylesheet" href="style.css">
<script src="script.js" type="text/javascript"></script>
</head>
<body>
<div>On</div>
<input type="button" onclick="popup()" value="Click Me!">
</body>
</html>
This is being hosted locally on XAMPP, the page displays fine and the CSS works fine, the javascript is in the same directory as the html page and works fine when written inline with the HTML. However the js does not work in any of the following scenarios when trying to include it as an externality:
When application/javascript is used above it still doesn't work. All I receive in either case (in the Firebug script window) is "popup()" and that's it. Here is the script.js file:
function popup() {
alert("Hello World")
}
This js also doesn't work (I tried it even though I'm not parsing XML):
//<![CDATA[
function popup() {
alert("Hello World")
}
//]]>
nor this:
document.addEventListener('DOMContentReady', function popup() {
alert("Hello World")
})
nor this:
<script type="text/javascript">
function popup() {
alert("Hello World")
}
</script>
Not that I really expected it too, but I was getting desperate. If anyone knows what's going on, I'd appreciate any info.
I'm open to this being an issue with hosting this locally on XAMMP but find it doubtful as CSS and HTML are both flying. However the js works if I include it inline with the HTML(?). If it helps, when Firebug displays popup() in the script window it also shows an #conn1source connection.
UPDATE: according to one of the suggestions in the comments if I only write the following in the js file it works:
alert("Hello World")
however the function does not. So I'm guessing this means that I wrapped the function somehow incorrectly in the js file, but I'm following standard practice as far as I am aware.

addEventListener not working on any browser

I ran the below code and tried it on all browsers but it didn't work
//HTML Code
<html>
<head><title>Test</title></head>
<body onload="LaunchImageSlider();">
<script type="text/javascript" src="Scripts/javascript code.js"></script>
</body>
</html>
//javascript code.js
function LaunchImageSlider() {
window.addEventListener("load",function() {alert("Hi")});
}
I did not get any alert message. My actual aim is to create an image slider once the page is loaded so I began first by seeing whether the "addEventListener" works.
What am I doing wrong here?
I referred to the below questions already, but nothing helped:
addEventListener is not working
addEventListener() not working
addEventListener not working
addEventListener in javascript
A possible solution:
<html>
<head>
<title>Test</title></head>
<body>
<script type="text/javascript" src="Scripts/javascript code.js"></script>
<script type="text/javascript">
(function () {
LaunchImageSlider();
})();
</script>
</body>
</html>
But in the function you should not add and eventListener, as it is run after the window has loaded. You should just run the callback method directly. So using your example:
//javascript code.js
function LaunchImageSlider() {
alert("Hi");
}

JQuery .load() not working in Internet Explorer

I am using following code for my website:
<script src="js/jquery-1.10.1.js" type="text/javascript"></script>
<script src="js/jquery-migrate-1.2.1.js" type="text/javascript"></script>
<script type="text/javascript">
$(document).ready(function() {
$("img#logo").load(function() {
alert('Hello');
});
});
</script>
And this is not working in IE but works fine in Firefox, Chrome and Safari.
I can confirm that your code does work in IE 8 on windows 7 64 using unminified version:
<!DOCTYPE html>
<html>
<head>
<title>test</title>
<script type="text/javascript" src="jquery-1.10.1.js"></script>
<script>
$(document).ready(function () {
console.log($.fn.jquery);
$("img#logo").load(function () {
console.log('Hello');
});
});
</script>
</head>
<body>
<img id="logo" src="somegig.gif" onload="console.log('load');"/>
</body>
</html>
This will log 1.10.1 then load and then Hello, maybe you have to validate your html and make sure your html is valid maybe that's a problem.
a quick review of http://api.jquery.com/load-event/ provides some caveats:
Caveats of the load event when used with images
A common challenge developers attempt to solve using the .load()
shortcut is to execute a function when an image (or collection of
images) have completely loaded. There are several known caveats with
this that should be noted. These are:
It doesn't work consistently nor reliably cross-browser
It doesn't fire correctly in WebKit if the image src is set to the same src as before
It doesn't correctly bubble up the DOM tree
Can cease to fire for images that already live in the browser's cache
Note the first and fourth caveats. Clear the cache and try again.
Also, do you need the jQuery migrate ? Lose it and see if it is glitching your IE

Get an alert box to popup at the jquery event $(document).ready in smarty template

I'm juuuuuust trying to get an pop up displaying test when the document is ready. I've managed to get google maps working on another page but somehow this is a lot of pain.
Here's the code:
<html>
<head>
[...]
<script type="text/javascript" href="https://ajax.googleapis.com/ajax/libs/jquery/1.5.0/jquery.min.js"></script>
{literal}
<script type="text/javascript">
$(document).ready(function () {
alert ("test");
});
</script>
{/literal}
</head>
[...]
</html>
What should I do to get that popup message? I also tried copy pasting from my working jquery page without much success.
Changing <script href=...> to <script src=...> works like a charm for me.
Does you javascript is enabled in your browser ?
You can type this:
$(function() {
alert("test");
});

Categories