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Render Scripts-Section after scripts were loaded in ASP.NET Core PartialView

In an ASP.NET Core app, I've a dashboard with widgets. Every widget has its own PartialViews, so the full page is generated in the following way:
-Layout.cshtml
--Dashboard.cshtml
--- Widget1.cshtml
--- Widget2.cshtml
Following best practices according to fast page load times, JavaScript is loaded before the closing </body> tag in Layout.cshtml. After that, there is a section for custom JS, which I commonly use to initiate objects on page load. So this section looks like this:
<script asp-append-version="true" type="text/javascript" src="~/clientscript/page.min.js"></script>
#RenderSection("Js", required: false)
In my Views, which are using the Layout.cshtml as layout (in this example, its Dashboard.cshtml), I can define a section like
#section Js {
// Js Code here
}
which is rendered after the script tag containing all script files. So I can be sure, that all dependencies like jQuery or custom classes are avaliable here.
But I also need to do this in widgets like Widget1.cshtml for example. The problem is: I load the PartialView Widget1.cshtml in Dashboard.cshtml. In the documentation is written, that this is not possible:
If you declare a Razor section in a partial view, it will not be visible to its parent(s); it will be limited to the partial view.
But that's exactly what I need. Is there a way to work around this limitation? Shortly, the goal is to inject JavaScript from a PartialView to the LayoutView, with an regular View between them.
The only way I know is the usage of setInterval() with a low interval like 50ms, and check there if jQuery or some of my custom class is defined in a loop until they are. Its a JS solution yes. But it makes it possible to include the script-block directly in the PartialView without making usage of sections. It fits well when you depend on a single variable like jQuery.
But I need to wait for custom classes to get loaded. They're included after jQuery. So writing a generic function like waitForTypeLoaded(type, callback) is not possible. It would cause me to write always the raw setInterval() code, which seems not a smart solution for me.

Something I did to get my scripts to run after Jquery was done loading was in my Partial Views and View Components I used the "DOMContentLoaded" event to load all my jQuery js script after the page was done loading. That way I could defer the Load of jQuery and Still Have jQuery code on my pages.
<script>
window.addEventListener('DOMContentLoaded',
function() {
$('body')....
});
</script>

Your problem can be solved as mentioned in my answer to this post:
How to render scripts, generated in TagHelper process method, to the bottom of the page rather than next to the tag element?
To sum up, you can create a pair of tag helpers, one that can be located in a partial view and just stores its content in a temporary dictionary, and the other that renders the content at the appropriate position (e.g. in the layout page). I use it extensively to render small dynamically created scripts as the final scripts of the body.
Hope it helps.

Honestly, I would make one step back and look at architecture once again if you have such dilemmas.
Why not add to required scripts which will be used on a couple of views/partial views to the main layout? In ASP.NET MVC you can use bundling mechanism (or you can write our own) - minify and bundle them with other required. It won't be heavy...
Your approach looks like unnecessary complicated.

Using HTML5 tooltip gets page ruined on Google Chrome

So I wrote this page from scratch, using php, python and bash. The page collects data from the server, and displays it.
I would like to add tooltips on the world map, such that the user could see the station name on click/mouseover. I followed this tutorial.
1- I wrapped my world image with #wrapper
2- I added the CSS code
3- I added the Javascript code.
This appeared to look fine in the beginning and the tooltip is working, but on Google Chrome, like 90% of the time (I'm on Windows 10 viewing this) I suddenly see that the world map gets messed up, as follows, getting over the data plots:
While it should look like this:
I noticed that this problem happens in Google Chrome, and not on Mozilla Firefox or Microsoft Edge... Why is this happening? I have the feeling that a simple float command could fix it. Could you please help me with this? Why is this happening?
If you require any additional information please ask.
UPDATE:
I noticed removing this part of the script solves the problem:
$('#wrapper').css({'width':$('#wrapper img').width(),
'height':$('#wrapper img').height()
})
But then the tooltip doesn't work.

You have your rome.js included in head section. If it will be loaded earlier then html body, it will be executed earlier then dom content loaded.
So the first time evertything works, because js is loading with dom content. After first refresh js will be taken from cache and executed too early.
So you should prevent that using jquery $(document).ready() method or DOMContentLoaded event.
Or you could simply include your rome.js in the end of the body section.

There are two things not working out here:
You don't have a doctype.
You have some <style> and <script> tags before your <html>. They should be inside your <head> or <body>

3rd Party Script Breaking my JS

I have a 3rd party script that displays some data on my site. When the script loads it breaks all of the JS on any page the script is in. I remove the script and my page works without issue.
Are there ways to prevent 3rd party scripts from interacting with my page in a way the breaks the page?
Notes:
I have no access to the 3rd party script to edit.
I am using jQuery for the scripts that are breaking. I have in place jQuery.noConflict yet it still breaks the page.
I have attempted to load the script in an iframe to see if that made a difference. It did not.
The script does write data to the page, mainly CSS and HTML
Note: The below code may contain references/links to drug content, mainly marijuana.
I am building a site for a medical marijuana dispensary. I am importing the menu of the dispensary from a site called WeedMaps. Their embed code looks like this:
<script type="text/javascript">var wmenu_id = 1111;</script> //The number correlates to the menu I need to pull, I have changed it in this question
<script type="text/javascript" src="http://legalmarijuanadispensary.com/components/com_weedmenu/weedmenu-widget.js"></script>
When I use the above code the JS of my site breaks. How to I prevent my code from breaking when using 3rd party scripts over which I have no control.
UPDATE
Here is a JS Fiddle. The menu opens but doesn't close properly. Remove the script that is generating the menu from weedmaps and the menu works correctly. (The weedmaps menu script is in the bottom of the HTML panel.)

Hmm, not having much luck. I'll add what I have, since it may trigger further ideas from you. However, in short, I think their script isn't written particularly well, and that they really do need to fix it on their end.
As it stands, Firefox shows this error when animating the menus:
TypeError: jQuery.easing[jQuery.easing.def] is not a function
This blog suggests that this occurs when the Easing plugin is loaded before jQuery. Fine, I thought - we just need to load the WeedMenu script after our jQuery has loaded. So I tried the following (with help from here):
$j.getScript('http://legalmarijuanadispensary.com/components/com_weedmenu/weedmenu-widget.js');
That gave me this error:
A call to document.write() from an asynchronously-loaded external script was ignored.
Turns out that occurs as a result of the WM script using document.write, which is desperately out of date. So that lead me on to find crapLoader, which is meant to handle this sort of thing:
crapLoader.loadScript("http://legalmarijuanadispensary.com/components/com_weedmenu/weedmenu-widget.js", "menu-script");
Unfortunately that brings me back to the original Easing error.
Here's my fork - let me know if you find anything!

The script is not well written, I was able to solve my issue by removing a line of code from the script. The link I provided list to a longer script. The script had this line of code:
try {
b("http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"), "function" != typeof wmenu_strains_callback && b("http://legalmarijuanadispensary.com/components/com_weedmenu/weedmenu.js", !0)
}
if I remove b("http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"), then the script works and my page works. What was happening was the script was inserting jQuery into the bottom of my head and breaking the rest of my javascript.

Highcharts bar chart breaks when in external js

I'm having a little trouble with Highcharts. I have a graph set up with a default stacked bar layout. It looks fine. The code is in an html file.
I then put the same code, no modifications, into an external .js file, and the second result is what I get. I'm totally stumped, I have no idea why this is happening. Any ideas?
The js file has a bunch of other code, but I don't think it should conflict with the graph generation...
Thanks.
Working Graph: http://i.stack.imgur.com/51QTV.png
Broken Graph: http://i.stack.imgur.com/VyDzK.png

Since you didn't provide any sample code, I'm going to wildly guess at causes:
The code in the external JS file /is indeed/ interfering with the graph generation. This may happen if it isn't being loaded properly with the onload event. Most Javascript should only be executed after the document has completely loaded (jQuery is good for this).
By putting the Highcharts code in an external file, you're breaking the order of loading. Perhaps, some of the code depends on other code that you're now loading later. Maybe it's trying to use a stylesheet that doesn't exist yet. Maybe some code before it is overwriting a global object, and some properties and methods are disappearing.
As a general rule, Javascript files should be loaded AFTER stylesheets, and most Javascript logic should execute after the document loads. This can either be done by attaching an onload="javascript:foo()" attribute to the body, or using $(foo); (where foo is a function) if you're using jQuery.

Running JS on page load to draw a canvas

I am working on a new graph for my site, using CSS3/HTML5 (canvas tag). Everything is going great so far, but I have one problem: Right now, the canvas loads blank, and the user has to click on a link to trigger the JS that draws the graph.
Its been a while since I had JS that I wanted to run immediately, so I figured I would ask what the best way to handle this would be.
P.S. Due to compatibility issues with one of the frameworks I use, I cannot use JQuery.

An unobtrusive solution
window.onload = function() {
// ... do stuff
};

You can run JS immediately from the body element's onLoad attribute:
<body onload="myFunc();">