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Javascript Reference error "$ is not defined" [closed]

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Closed 4 years ago.
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The script does not work, and the ebugging screen shows the error
$ is not defined
<script href="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<script type="text/javascript">
$(window).on('scroll', function(){
if($(window).scrollTop()){
$('nav').addClass('black');
}else{
$('nav').removeClass('black');
}
})

This line:
<script href="https://code.jquery.com/jquery-3.3.1.min.js"></script>
You must edit "href" to "src"

React.js not working [closed]

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Closed 6 years ago.
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I've been trying to do the React.js getting started but when i run the example code This happens
Here is the code

You have a typo in script tag, you're saying scipt

validator.js bootstrap works but show not a function error [closed]

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Closed 7 years ago.
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I have ajax form as on modal window. I want to validate the fields and i have followed the following tutorial. and Add the validator.js script into my project.
event.preventDefault();
//$('#myOrderDetailsForm').validator();
$('#myOrderDetailsForm').validator('validate')();
Here is what am seeing :
So wired .

Instead of this:
$('#myOrderDetailsForm').validator('validate')();
Use following:
$('#myOrderDetailsForm').validator('validate'); //removed ()

How to load my JavaScript file in my HTML page (bug)? [closed]

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This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers.
Closed 8 years ago.
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I have a HTML page with : <script scr="myJavaScriptFile.js"></script>,
and a javascript file named myJavaScriptFile.js (in the same folder).
My problem : the javascript don't work because the file is not loaded I think. The "sources" tab of google chrome tool for inspect elements show me NOT my .js file.
I have other pages with script which work well so I don't know what is the problem.

It's a misspelling, it should be src, not scr:
<script src="myJavaScriptFile.js"></script>
^^^

Just a typo in your code:
<script src="myJavaScriptFile.js"></script>

Setting cookie from a JavaScript file on another domain [closed]

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This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers.
Closed 1 year ago.
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I have a site on domainA.com. It includes file.js from domainB.com:
<script type="text/javascript" src="http://www.domainB.com/file.js"></script>
In file.js, I want to be able to set a cookie for domainA.com. How would I do this? It must be possible since Google Analytics does it for their __utma, etc. cookies.

I'm an idiot--apparently, this isn't actually a cross domain cookie and you can set it using document.cookie='blah'.