JavaScript file doesn't load - javascript

I'm using Spring MVC, Thymeleaf and want to import a javascript file in my html document. Although all links are set correctly and the files appear in the debugging view in my browser, they don't load.
There is following JS in the HTML that should call a datepicker, but it doesn't show up:
<script th:inline="javascript">
/*<![CDATA[*/
$( function() {
$( "#datepicker" ).Datepicker(
);
} );
/*]]>*/
</script>
the files are included this way:
<script type="text/javascript" th:src="#{/resources/js/file.js}"></script>
CSS files work just fine just with the type changed.
Any ideas how to fix this?
Shows error on Chrome debugging
Now I deleted all not necessary js files from the import and it shows following error:
more precise error
This shows that the jquery-1.12.4 is used.

When you are using Spring and Thymeleaf the following project structure is recommended:
src
|-main
|-resources
|-static
| |-css
| |-bootstrap.min.css
| |-application.css
| |-images
| |-js
| |-jquery-3.1.1.js
|-templates
Then including different resources in your templates will look like this:
<head>
<link href="../static/css/bootstrap.min.css" rel="stylesheet" media="screen"
th:href="#{/css/bootstrap.css}"/>
<link href="../static/css/application.css" rel="stylesheet" media="screen"
th:href="#{/css/application.css}"/>
<script src="../static/js/jquery-3.1.1.js"
th:src="#{/js/jquery-3.1.1.js}"></script>
</head>

The Answer:
1) <th:block></th:block> makes no diffrence
2) The additions to the html tag
xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3"
xmlns:layout="http://www.ultraq.net.nz/thymeleaf/layout"
make no difference
3) placing the script-tags with content at the bottom of the body is the same as when placing it in the head
4) I use Bootstrap in this project and used the datepicker inside a div of Bootstrap. After placing it somewhere else in the body and not inside a div it worked.
Conclusion:
If you are using Spring MVC and Thymeleaf and want to include JavaScript files you need:
1) <html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org" >
2) <link th:href="#{/resources/.../file.css}" rel="stylesheet" type="text/css"/>
3) <script type="text/javascript" th:src="#{/resources/.../file.js}"></script>
4) Make sure your JS or CSS files are not "overwritten" by following files
Thanks for your time and help #Parth!

Related

Chardin Js , Hybrid Cordova mobile application - "undefined" is not a function

I am trying to create "coach marks"/ instruction overlays in my hybrid mobile app using Jquery and the Chardin.js library : https://github.com/heelhook/chardin.js
But unfortunately I keep getting this error :
[FATAL] [NONE] Uncaught Exception: TypeError: 'undefined' is not a function (evaluating '$('body').chardinJs('start')') at (compiled_code):5
this is how my JS file looks like :
$(document).ready(function() {
console.log("IN CHARDIN INIT");
$('.container').chardinJs('start');
});
And I load all the files in the HTML file like this (this code is not showing all the div elements for simplicity):
<head>
<link rel="stylesheet"
href="../../css/jquery/mobile/1.3.2/jquery.mobile.structure-1.3.2.min.css" />
<script src="../../js/jquery/mobile/1.3.2/jquery.mobile-1.3.2.min.js"></script>
<!-- Chardin/ Coach marks stuff -->
<script src="../../js/chardin/chardinjs.min.js"></script>
<link href="../../js/chardin/chardinjs.css" rel="stylesheet" />
</head>
<body>
<!-- Coach marks stuff -->
<script type="text/javascript" src="../../js/chardin/chardinInit.js"></script>
</body>
Am I doing something wrong here ??
After days of debugging I found out that the ChardinJs lib was not loading and I had to add it to the body of HTML to load.
The other thing was that Chardin JS has a dependancy that is not mentioned on their website. It needs the bootstrap plugin that I was missing. As soon as I added this dependancy, It started working.

Referencing JQuery correctly

I am trying to use Jquery for the first time and I am getting an issue. I am using VS 2013, asp.net and VB.
My head tag is as follows.
<head runat="server">
<title></title>
<link href="StyleSheet.css" rel="stylesheet" type="text/css" />
<meta http-equiv="X-UA-Compatible" content="IE=EDGE" />
<script src="Bin/jquery-1.10.2.js" type="text/javascript"></script>
<script>
$(document).ready(function () {
$('#LowerText').hide();
$('#UpperText').hide();
$('#AssetStatusChoice').change(function () {
if($('#AssetStatusChoice').val("Fully Available"))
{
$('#CommentsText').hide();
}
if ($('#AssetStatusChoice').val("Restricted"))
{
$('#UpperLimit').show();
$('#LowerLimit').show();
}
if ($('#AssetStatusChoice').val("Unavailable"))
{
$('#Commentstext').show();
}
});
});
</script>
</head>
When I debug the page I get the following error.
0x800a1391 - JavaScript runtime error: '$' is undefined
It seems from Googling the error that I am not referencing the js file correctly. Can anyone help?
Add <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js">
</script> and Remove the
<script src="Bin/jquery-1.10.2.js" type="text/javascript"></script>
<script> Just use a host Jquery instead of adding it to you source. Read more :
3 reasons why you should use hosted jQuery
IIS doesn't serve content in the /bin directory.
Move it to another directory like /scripts or /js or /scripts/lib, something like that. The bin directory is a bad place to put script files.
You have a number of options here. You could use the Google CDN by adding the following to your header:
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
Or, as it appears you're using .NET, you could do this:
<script type="text/javascript" src="<%=ResolveClientUrl("~/Bin/jquery-1.10.2.js") %>"></script>
The second option gives you the additional advantage that when used in a master page can be used in any content pages at any file system level and it will still resolve correctly.
As Stefan has also said, I'd recommend moving your jQuery file from your bin directory.
Copy the jQuery file in some other folder, like Scripts, or js, and in Solution Explorer check to see all files. Find the jQuery file you just copied, include it in the project, then drag it on the page where you want to place it. A correct script tag will be created.

can't include js file in pyramid project

I'm trying to use an external js file to use in my pyramid project.
I found this solution but i can't seem to get it work.
The js files i want to include are in C:\env\uza\uza\static\js
project name = uza.
In my template i use this to call the script:
<script type="text/js" src="${request.static_url('uza:static/js/fabtabulous.js')}" />
<script type="text/js" src="${request.static_url('uza:static/js/tablekit.js')}" />
my init.py looks like this:
config.add_static_view('static', 'static', cache_max_age=3600)
When i navigate to the page in my browser it just gives me the pyramid sidebar in raw html code. I know it's a stupid mistake i made somewhere but i can't seem to find it. Is annyone able to help me with this.
EDIT:
I uploaded a pdf to give a better understanding of the problem i'm having.
ps: there are no errors in console.
https://dl.dropboxusercontent.com/u/6752022/problem.pdf
EDIT:
I made a new project using the sqlalchemy scaffold.
The changes I made are:
- include this line in the mytemplate.pt
<script type="text/js" src="${request.static_url('javascript:static/js/tette.js')}" />
<input type="button" onclick="popup()" value="Click Me!">
- i didn't change annything else because i don't think anny other changes need to be made in the scaffold.
my tette.js file looks like this:
function popup() {
alert("Hello World")
}
This is the output i have before including the js file. (deleted a few divs)
And this is after.
what am I doing wrong ? thanks in advance.
Can you back it out to a point to where the pyramid sidebar looks and works correctly, and isn't raw HTML?
Your init.py line looks correct. Then in your templates you can get at whatever is in the 'static' folder like so:
<link rel="stylesheet" href="${request.static_url('myproject:static/style.css')}">
<!--[if lte IE 6]>
<link rel="stylesheet" href="${request.static_url('myproject:static/ie6.css')}" type="text/css" media="screen"
charset="utf-8"/>
<![endif]-->
<script type="text/javascript"
src="${request.static_url('myproject:static/tinymce/jscripts/tiny_mce/tiny_mce.js')}"></script>
it's as Peter Tirrell says.
I didn't say the type was javascript.

Group of CSS and JS files import at HTML?

I have a group of CSS imports as like:
<link rel="stylesheet" href="/css/reset.css"/>
<link rel="stylesheet" href="/css/visualize.css"/>
<link rel="stylesheet" href="/css/datatables.css"/>
and some JavaScript code imports as like:
<script src="/js/excanvas.js"></script>
<script src="/js/jquery.js"></script>
<script src="/js/jquery.livesearch.js"></script>
<script src="/js/jquery.visualize.js"></script>
Is it possible to put all CSS import lines into a file i.e. cssImports.css and put all JS import lines into a file i.e. jsImports.js. So when I want to import that CSS and JS group files I will write something like:
<link rel="stylesheet" href="/css/cssImports.css"/>
<script src="/js/jsImports.js"></script>
so all the files listed above will be imported?
PS: I don't want to write any code belongs to web server specific.
Javascript imports: no.
CSS import: yes, but you shouldn't because it breaks parallel downloading of stylesheets.
Your best bet is to use a local build script (such as the Ant script included with the HTML5 Boilerplate) to concatenate your stylesheets and scripts before uploading them to the server, then linking to the 'master' resources in your HTML:
<link rel="stylesheet" href="/css/master.css">
<script src="/js/master.js"></script>
There is a tutorial on using the Ant script.
Go with LazyLoad! https://github.com/rgrove/lazyload/
It's a very small js (less than 1kb) that takes care of resource loading for you.
Download the package and save on your js folder. Then you would probably want to do this:
<script src="js/lazyload-min.js"></script>
Then for javascript files:
<script>
LazyLoad.js(["/js/excanvas.js", "/js/jquery.js", "/js/jquery.livesearch.js", "/js/jquery.visualize.js"], function () {
alert('all js files have been loaded');
});
</script>
Css:
<script>
LazyLoad.css(["/css/reset.css", "/css/visualize.css", "/css/datatables.css"], function () {
alert('all css files have been loaded');
});
</script>
This will also boost the performance of your page, enabling parallel css and js loading (the latter on firefox opera only).
You can Import CSS like this:
Create a new CSS cssImports.css and add there lines
#import url('/css/reset.css');
#import url('/css/visualize.css');
#import url('/css/datatables.css');
and relate it in your homepage as:
<link rel="stylesheet" href="/css/cssImports.css"/>
For Javascript import doesn't work. But you can create a single JS file and include the javascript code of each file after one another. But this is not recommended. It is better to have separate <script> tag for each js file.
for css:
<style>
#import url('/css/styles.css');
</style>
for js you could try something like
document.write("<script type='text/javascript' src='otherScript.js'></script>");
but i dont see a reason to do either of theese...
Yes just copy all the code and place in into a new file in the order than you would like it to run.
I know there are some javascript libraries that can do this for you but I dont have an experience of using them. I think Yahoo compiler/ YUI has one.
I'm not recommend do that because performance issue, but if you want the way, you can do that:
For CSS yes its possible, in cssImports.css you can put:
#import url(/css/reset.css);
#import url(/css/visualize.css);
#import url(/css/datatables.css);
But for JS, I think no way as much as CSS, but you can do this (adding JS files) from one JS file (ex jsImports.js), by write code create script element and add this element to page, like that :
var jsE = document.createElement('script');
var url = 'JS LINK HERE';
jsE.setAttribute('type', 'text/javascript');
jsE.setAttribute('src', url);
document.getElementsByTagName('head').item(0).appendChild(jsE);
Do this for each link of JS that you want to put, I have and idea, using Arracy contains JS links like this:
var jsLinks = new Array(
"/js/excanvas.js",
"/js/jquery.js",
"/js/jquery.livesearch.js",
"/js/jquery.visualize.js"
);
then a loop read a link each time and put this, like :
for (i = 0; i < jsLinks.length; i++)
{
var jsE = document.createElement('script');
var url = jsLinks[i];
jsE.setAttribute('type', 'text/javascript');
jsE.setAttribute('src', url);
document.getElementsByTagName('head').item(0).appendChild(jsE);
}
I didn't test my code, But I hope my idea is explained well.
Best
Edit 1: yes you can use Gatekeeper solution for JS (Very Simple), but it use "write" but "for me" I don't like that way :)
This is now possible as follows with HTML Imports which are in W3C draft
<link rel="import" href="import.html">
import.html
<link rel="stylesheet" href="/css/reset.css"/>
<link rel="stylesheet" href="/css/visualize.css"/>
<link rel="stylesheet" href="/css/datatables.css"/>
<script src="/js/excanvas.js"></script>
<script src="/js/jquery.js"></script>
<script src="/js/jquery.livesearch.js"></script>
<script src="/js/jquery.visualize.js"></script>
At this time only Chrome, Android and Opera support HTML Imports natively, but WebComponents provides a very mature polyfill script called webcomponents-lite.js to support all modern browsers

ASP.NET MVC 3 How to inject Javascript into the master layout

I am trying out the new razor view engine from MVC 3. The issue that I am having is that I have Javascript that is page specific. I normally have all my Javascript code before the tag closes. I was thinking of putting a section just before I close the body tag on my master layout. Some thing to the effect of:
<script type="text/javascript">
#RenderSection("JavaScript")
</script>
But VS2010 underlines it in green. So which ever pages uses this master layout can have it's Javascript injected Here. How would you guys do it? The reason why I want to do it like this is because then I can add JavaScript from the master layout also in here, other I will have to define a separate script tag just below the #RenderSection.
When I do the following then VS gives me a warning (I don't like warnings):
Validation (HTML 4.01): Element 'link' cannot be nested within element 'link'.
Here is my code for the above warning:
#section HeadSection
{
<link href="http://yui.yahooapis.com/2.8.2r1/build/button/assets/skins/sam/button.css" rel="stylesheet" type="text/css">
<link href="http://yui.yahooapis.com/2.8.2r1/build/datatable/assets/skins/sam/datatable.css" rel="stylesheet" type="text/css">
}
How can I get these warnings away?
Here's what I'd do, according to the best practices you should place your scripts at the bottom of the page.
_Layout.cshtml
<html>
<head>
#* ... *#
</head>
<body>
#* ... *#
#RenderSection("Scripts", false)
</body>
</html>
MyView.cshtml
#section Scripts
{
<script src="#Url.Content("~/Scripts/myScript.js")"
type="text/javascript"></script>
}
I would use #RenderSection("head", false) in my _layout page. Then you can inject whatever you want in the head of the page (including script)...and by using false you make it optional on all of your view pages.
You can turn off or modify VS's XHTML validation checking:
http://weblogs.asp.net/scottgu/archive/2005/11/23/431350.aspx
You need to close the link tags.
Like this:
#section HeadSection
{
<link href="http://yui.yahooapis.com/2.8.2r1/build/button/assets/skins/sam/button.css" rel="stylesheet" type="text/css" />
<link href="http://yui.yahooapis.com/2.8.2r1/build/datatable/assets/skins/sam/datatable.css" rel="stylesheet" type="text/css" />
}
And then follow Ryan's answer.

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