jquery not running with rails in external js file - javascript

i am using rails and trying to call jquery code present in external js file whose path i have specified correctly in my html file.The jquery code is executing correctly when i include it directly in html file.
my test.js
$(function(){
alert("yes");
});
and index.html.erb :
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script type="text/javascript" src="/assets/javascripts/views/test.js"></script>
</head>
jquery executes when included inside html
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script type="text/javascript">
$(function(){
alert("yes");
});
</script>
</head>
the test.js path is correct since other javascript functions are getting called from the same file but not jquery code

why you have head tag in index.html.erb file . It already included in layout/application.html.erb file . in this way you are including jquery file twice. If you include two versions of jquery in any html they always create issue.
In my suggestion you need to remove your head tag from index file completely . And what ever js file you want to include, include it in your application.js file. for current scenario you can do it like below.
//= require views/test

#user3946910
Try like this.
in your index.html
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script type="text/javascript" src="/assets/javascripts/views/test.js"></script>
</head>
and in your test.js file add this.
$(document).ready(function(){
alert("yes");
});
Like this just import all plugins in the html itself, and create fresh .js page to write just your own script.
I hope it will help.

Related

Where to add JavaScript code that needed jQuery file?

I've founded this article but I don't know where to add this code:
$(document).ready(function(){
$(".showDescriptionTextbox").val($(".Product").val());//to initialize
$(".showDescriptionDiv").text($(".Product").val());//to initialize
$(".Product").change(function(){
$(".showDescriptionTextbox").val($(".Product").val());
$(".showDescriptionDiv").text($(".Product").val());
});
});
I've file jquery-1.11.3.min.js, jquery-1.10.2.min.js.
Should I edit one of both file with above code? Please give me a hint.
I want to execute query SQL by clicking the select option that I know it's just possible using jquery/ajax/js, but I'm still newbie.
I've file jquery-1.11.3.min.js, jquery-1.10.2.min.js. Both are jquery library file with different version. Only one should be included.
In your case the code snippet which you have shared can be included in a separate js file. Like this
nameOfYourJSFile.js
$(document).ready(function(){
$(".showDescriptionTextbox").val($(".Product").val());//to initialize
$(".showDescriptionDiv").text($(".Product").val());//to initialize
$(".Product").change(function(){
$(".showDescriptionTextbox").val($(".Product").val());
$(".showDescriptionDiv").text($(".Product").val());
});
});
Include the file in your main html file. Add the scripts near the bottom of the page.
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="style.css">
</head>
<body>
<h1>Hello Plunker!</h1>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="nameOfYourJSScript.js"></script>
</body>
</html>
DEMO
If the file is included in the bottom , there is no need to use document.ready function
Add your code BELOW the <script src="jquery-1.11.3.min.js"></script>
So, JQuery will be loaded and can be used

js code is not working in an external file, but works file when placed in the same html page

I have this code in the footer of my html page
<script type="text/javascript">
// using jQuery
$('video,audio').mediaelementplayer();
</script>
the above code is adding video player on the html page.
Now I have created a separate js file in which I have already have some line of code which is creating owl sliders, tooltips, number counters etc.
When I add the above code into that separate js file it does not work, instead when I keep it in the footer of the html page it works fine.
Try placing your code within $(function(){ ... }. This will execute when the DOM is loaded (currently your code is being executed before jQuery is loaded, if you check the JavaScript console, you will see an error something like $ is not defined)
$(function(){
$('video,audio').mediaelementplayer();
});
or
$( document ).ready(function() {
$('video,audio').mediaelementplayer();
});
You can read about what that is doing here. $(function() is the same as $( document ).ready()
your html(basically) should look like this:
<html>
<head>
</head>
<body>
<!-- html code here -->
<!-- add jquery lib -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<!-- your script -->
<script src="you/file/path.js"></script>
</body>
</html>
and your jquery file:
jQuery(function($) {
// your functions here
$('video,audio').mediaelementplayer();
});
Do you have a proper link to the separate js file in your page, generally at the bottom of the body? It should look something like this:
<script type="text/javascript" src="/joyride_odoo_models/static/js/scripts.js"/>
If you've done that properly, have you tried clearing your browser cache? You may need to do that to detect new javascript files.
How do you call your external js file ?
You must add your references js before your external js file.
you must add your function on document.ready.
You may wait until jQuery is full loaded or ready.
Ex.
$(document).ready(function($) {
// Your code goes here
$('video,audio').mediaelementplayer();
});
This code goes in external js file, then you need to include the file in the HTML
<script type="text/javascript" src="path/to/your/js/file"></script>

Move javascript files into inline html

I have an application that allows the use of inline javascript, but not javascript from source files. I'm trying to modify a webpage to open on this browser, and need to know how to put the javascript files from the webpage inline.
Use <script> tags in your HTML. They can go anywhere - I prefer inside the <head> tag:
<head>
<script type="text/javascript">
// put anything here - any type of valid javascript works
// if you import jquery, you can use jquery here too!
</script>
</head>
You should place your imported code into the script tag in your HTML page (application in your case), look at the following example:
<html>
<head>
<script type="text/javascript">
//Import your JS script here, e.g.:
function doSomething(){
..
}
</script>
</head>
<body>...</body>
</html>

jquery not running when linked to an external js

Whenever I put the script in another file in the same folder as script.js, it doesn't run. It only runs when I include my code in the script tag.
I tried it out with this simple jquery code. Whenever the third script tag is uncommented, it works, but the set up I have right now doesn't run.
HTML
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script type="text/javascript" scr="script.js"></script> // <!-- doesn't run -->
<!--script> // <!-- only runs inside the html file -->
$(document).ready(function(){
$('p').click(function(){
$(this).hide();
});
});
</script-->
</head>
<body>
<p>Click to hide.</p>
</body>
</html>
script.js
$(document).ready(function(){
$('p').click(function(){
$(this).hide();
});
});
Does anyone know what I am doing wrong?
scr is not src. Use a validator to make sure you haven't misspelt attribute names.
Your jQuery code is being duplicated inside the script.js file and .html file so that's why the code won't run.
Remove the jQuery code from the .html file and your code will run. Also like was mention above replace scr with src in your .html file.
Finally, I'd replace the code in your script.js file with the new code listed below as click(function(){} is older code:
$(document).ready(function(){
$("p").on("click", function(){
$(this).hide();
});
});

cant get jquery to work with php file

I have a linux webserver that has /var/www configured in the Apache2.conf file as the DocumentRoot. Next I have my jquery core file located at /var/www/js/jQuery_v1.4.2.js (a central location for all my websites to access.
The .php index file is located at /var/www/AOI/aoiparse.php, where the aoifunctions.js file is also located. My <head> tag looks as follows:
<script type='text/javascript' scr='/js/jQuery_v1.4.2.js'></script>
<script type='text/javascript' scr='aoifunctions.js'></script>
my aoifunctions.js file has the following in it in order to verify that the script link works:
$(document).ready(function(){
alert("hello");
});
My problem is that I cannot get the alert() to work. I'm not getting an error message so I do not know where the problem is.
You can try <script type='text/javascript' src='../js/jQuery_v1.4.2.js'></script>
(The attribute is src, not scr, plus your path was incorrect)
put the jquery file in /var/www/AOI/js/ and then
remove the first /
<script type='text/javascript' src='js/jQuery_v1.4.2.js'></script>
so it lies in a subdirectory to your main page
or use this if you want to leave it where it is:
<script type='text/javascript' src='../js/jQuery_v1.4.2.js'></script>
You misspelled "src" in your <script> tags. It's short for SouRCe.
<script type='text/javascript' src='/js/jQuery_v1.4.2.js'></script>
<script type='text/javascript' src='aoifunctions.js'></script>
If you used Firebug you'd have been able to easily tell that the scripts weren't loaded.

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