Separate javascript in to own .js file - javascript

You may see a JS below which is now commented which is now copied in all-set.js without two <script> lines.
It was working when I was using the code in head, now it's not.
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
<script type="text/javascript" src="all-set.js" ></script>
<!--
<SCRIPT language="javascript" >
$(function(){
// add multiple select / deselect functionality
$("#selectall").click(function () {
$('.case').attr('checked', this.checked);
});
// if all checkbox are selected, check the selectall checkbox
// and viceversa
$(".case").click(function(){
if($(".case").length == $(".case:checked").length) {
$("#selectall").attr("checked", "checked");
} else {
$("#selectall").removeAttr("checked");
}
});
});
</SCRIPT>
-->
</head>

What is your directory structure?
Where is the JS and where is the HTML file?
Are they right besides each other in the same folder?
If yes, try changing src of your script tag like:
<script type="text/javascript" src="./all-set.js" ></script>

Inside the JS file remove the script tags. These don't have to be there:
<SCRIPT language="javascript" >
</SCRIPT>
Also, as a general rule, always use lower-case tags in HTML.

Related

JQuery On Button Click Alert Issue

JSFiddle demo: https://jsfiddle.net/cr33q8v7/
$("#findMyWeather").click(function() {
alert("button clicked");
});
All I'm trying to verify is if the JQuery is working and I'm not getting any pop-up that says button clicked, so it would appear the syntax is wrong, but I've checked it multiple times and it looks right.
So if I include the library on JSFiddle, then why does the below code in the HTML file not run, as it appears the function is identical and these pointers both direct to the library:
<script src="//code.jquery.com/jquery-1.11.0.min.js"></script>
<script src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
<script>
$("#findMyWeather").click(function() {
alert("button clicked");
});
</script>
So the // pointers didn't reference (this is what the teacher instructed). When I changed to `https:``, then it functioned correctly:
<script src="https://code.jquery.com/jquery-3.1.0.min.js"></script>
<script src="https://netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
I need another set of eyes, or else I'm missing something else and just don't see it.
You need to include the jQuery library in JSFiddle.
Click the gear that says Javascript and choose the version of jQuery that suits you.
Your fiddle doesn't actually include jQuery via a script tag.
e.g. add: <script src="https://code.jquery.com/jquery-3.1.0.min.js"></script> to your HMTL
you must add below line after last div between body tag :
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4
/jquery.min.js"></script>
Here is Demo
Add the cdn link for Jquery. Without jquery it will not work. You can add it to the before end of body tag.
Add:<script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>
use jquery online by adding <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>.
<html>
<head></head>
<title></title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<body>
<button id="check">Click on me to check if jquery is working ....!</button>
</body>
<script type="text/javascript">
$("#check").click(function(){
alert("yep, jquery is working");
});
</script>
</html>
every thing looks fine please select jquery in fiddle then try it
and please add this script code in your file
< script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js" ></script>

EJS File Not Recognizing JavaScript File's Code

I am creating a website, I am using a NodeJS server. In my public folder I have a script named website.js and it has the jQuery code to give a console.log when the h1 is clicked. (Code Below). But when I click on the h1 in the browser it does not work. The file is loaded properly, gives no 404 error and my CSS stylesheet works fine.
Further Testing: I did a simple test to see if it would give back the text when I called the variable (test code below) it responds with: "" (two quotation marks) so it must not be recognizing it.
//Test code
var xyz = $("#testh1").text();
//jQuery Code
$("#testh1").on("click", function(){
console.log("Clicked");
});
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript" src="/javascripts/website.js"></script>
<link rel="stylesheet" type="text/css" href="/stylesheets/website.css">
<script src="https://code.jquery.com/jquery-2.2.4.js" integrity="sha256-iT6Q9iMJYuQiMWNd9lDyBUStIq/8PuOW33aOqmvFpqI=" crossorigin="anonymous"></script>
<title>test</title>
</head>
<body>
<h1 id="testh1">TEST</h1>
</body>
</html>
You need to load jQuery before your script.
<script src="https://path-to-jquery"></script>
<script src="/javascripts/website.js"></script>
You need to wait for the DOM to be ready before accessing any elements in it. You can either do it with the following code:
$(document).ready(function() {
$("#testh1").on("click", function(){
console.log("Clicked");
});
});
or by putting your <script>s at the bottom of the <body> instead of in the <head>.
<script src="https://path-to-jquery"></script>
<script src="/javascripts/website.js"></script>
</body>
You're getting an empty string in your test code because your #testh1 element hasn't been loaded yet.

External javascript not working

I have placed one javascript (hide.js) in my html Page ... Hide function is not working .My scripts are in right order
My code is as per tutorial
<!DOCTYPE html >
<html lang="en">
<head>
<meta charset="utf-8" />
<title>jQuery Example </title>
</head>
<body>
<p id="paragraph ">
This is Paragraph</p>
<script type="text/javascript" src="http://localhost/WebApplication2/js/hide.js"></script>
<script type="text/javascript" src="http://localhost/WebApplication2/js/jquery-1.7.1.min.js"></script>
<script type="text/javascript" src="http://localhost/WebApplication2/js/toggle.js"></script>
</body>
</html>
hide.js
$('#paragraph').click(function () {
$('#paragraph').hide();
});
I have test it with Firebug lite on Chrome .. Console doesnt show any error .. in script is also showing external scripts ...Other script are working fine
I have rearranged script Order like this
<script type="text/javascript" src="http://localhost/WebApplication2/js/jquery-1.7.1.min.js"></script>
<script type="text/javascript" src="http://localhost/WebApplication2/js/toggle.js"></script>
<script type="text/javascript" src="http://localhost/WebApplication2/js/hide.js"></script>
still it is not working ..
i couldnt find any relevant link ..whats wrong ..Please Suggest
Because, you included hide.js before jquery.js. You should include hide.js after jquery.js like so...
<script type="text/javascript" src="http://localhost/WebApplication2/js/jquery-1.7.1.min.js"></script>
<script type="text/javascript" src="http://localhost/WebApplication2/js/toggle.js"></script>
<script type="text/javascript" src="http://localhost/WebApplication2/js/hide.js"></script>
In case you must include hide.js first before jquery.js. Change your code to
$( document ).ready(function() {
$('#paragraph').click(function () {
$('#paragraph').hide();
});
}
In this way, your script will work after whole page is loaded.
Or, similarly you can use.
$(function() {
// Your Code
});
order should be, include jquery main file all above.
<script type="text/javascript" src="http://localhost/WebApplication2/js/jquery-1.7.1.min.js"></script>
<script type="text/javascript" src="http://localhost/WebApplication2/js/hide.js"></script>
<script type="text/javascript" src="http://localhost/WebApplication2/js/toggle.js"></script>
core jQuery file must be include before any other plugin as they may use core jquery methods internally.
You have a space in the id of your paragraph tag, which is invalid, so your javascript cannot select that paragraph using that id.
You need to remove the space from your id attribute.
Order of script - hide.js is using jQuery so it has to be included after jquery.js
<script type="text/javascript" src="http://localhost/WebApplication2/js/jquery-1.7.1.min.js"></script>
<script type="text/javascript" src="http://localhost/WebApplication2/js/toggle.js"></script>
<script type="text/javascript" src="http://localhost/WebApplication2/js/hide.js"></script>
Your browser console should show you an error saying something like Uncaught ReferenceError: $ is not defined
your id has space.remove it and try again
<p id="paragraph ">This is Paragraph</p>
it should be like this
<p id="paragraph">This is Paragraph</p>
I have discovered a very strange thing which probably could be the cause. It should certainly help you.
In your code, I see you have only external JS files. After those external files, include an empty tag. It should work.
Cause is not known but external JS does not get included at times if you do not have inline or empty script tag. It will be very interesting to dig in more. Let me update once I figure out.
Environment: Chrome latest Version 44.0.2403.130 m

I want to add my jQuery file separate from my HTML

I want to write cleaner and readable code, so I wanted to implement my jQuery code in a separate file. I saved the file in the sam folder as the jQuery code I downloaded from jquery.com. In my HTML I put the reference in there, and it does not work, but if I leave the jQuery code in my HTML it works.
My HTML code is this:
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>focusin demo</title>
</head>
<body>
<input type="text" />
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript" src="js/test.js"></script>
</body>
</html>
My jQuery code is in a separate file called test.js and follows:
$(':text').focusin(function() {
$(this).css('background-color', 'yellow');
});
But when I run it in my browser it doesn't work. I basically tried everything and decided I need professional help.
You may have a problem with relative links. Try changing this
<script type="text/javascript" src="js/jquery.js"></script>
to this:
<script type="text/javascript" src="/js/jquery.js"></script>
You need put your code in $(function() { ... });
Like this:
$(function() {
$(':text').focusin(function() {
$(this).css('background-color','yellow');
});
});
You need to add a ready handler for jQuery scripts, like
$(function() {
$('input[type=text]').focusin(function() {
$(this).css('background-color','yellow');
});
});
You can first confirm inclusion of a file by putting the alert() function in the test.js file. If included then you can try writing some jQuery code in the test.js file to check whether the jQuery file is included properly or not.

Noty (notifier) is not working inside a function

I have a misterious problem with the noty plugin click. When I create a notifier as explained on the site everything works fine, but when I put the same statement into a function which is called at the "onClick" event from a button, it doesn't work. There is no noty-notification coming, no errors, nothing happens if I press the button. When I remove the noty-thing and add a normal "alert" statement everything works fine. Is there something I have missed or is this a bug?
The original code looks like:
<head>
<script type="text/javascript" src="ajax/libs/jquery/1.7/jquery.min.js"></script>
<script type="text/javascript" src="js/noty/jquery.noty.js"></script>
<script type="text/javascript" src="js/noty/layouts/top.js"></script>
<script type="text/javascript" src="js/noty/themes/default.js"></script>
</head>
...
<script>
var noty = noty({text: 'noty - a jquery notification library!'});
</script>
When I put the same statement into following function, noty don't works anymore.
<head>
<script type="text/javascript" src="ajax/libs/jquery/1.7/jquery.min.js"></script>
<script type="text/javascript" src="js/noty/jquery.noty.js"></script>
<script type="text/javascript" src="js/noty/layouts/top.js"></script>
<script type="text/javascript" src="js/noty/themes/default.js"></script>
</head>
...
klick
...
<script>
function test_function(){
var noty = noty({text: 'noty - a jquery notification library!'});
}
</script>
Even if I change the var noty to var n (or something else) nothing changes, as stated in one stackoverflow question before.
Thanks in advance.
Regards, john.
it would be better if you use something like this:
<head>
<script type="text/javascript" src="ajax/libs/jquery/1.7/jquery.min.js"></script>
<script type="text/javascript" src="js/noty/jquery.noty.js"></script>
<script type="text/javascript" src="js/noty/layouts/top.js"></script>
<script type="text/javascript" src="js/noty/themes/default.js"></script>
</head>
<script>
$("#element").click(function(){
var n = noty({text: 'noty - a jquery notification library!'});
});
</script>
<a id="element" href="#" onclick="return false;" class="btn">klick</a>
And of course use an "id" on the element you wish to bind to noty. It will work perfectly.
Check out working example here:
JSFiddle

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