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Store Cookie On Window UnLoad (Window.Variable)

UPDATE:
I stopped using an array (As I originally was when I first posted this)
I seem to be having issues with my script. I don't know why, but when the web page unloads, the window.SpecificURL doesn't save. I know the script to get it is fine, the script to store it is as well. Is there something I am missing? Here is my code:
var UWDV = window.UWDV = "UserWindowDataV2"; // What Version Is The User Window Data Stored As
setTimeout(function(){ // Wait So Stuff Can Load
if (!window.SpecificURL){ // If Not A Special URL To Load
window.SpecificURL = GetCookie(UWDV); // Get The User's Last Known State
var WSURL = window.SpecificURL; // Set Variable
// if (typeof WSURL[0]!=="string" || WSURL[0].length < 2){SetCookie(UWDV, ["home"]); WSURL = ["home"];} // If It Glitched, Fix Automatically
console.log(WSURL);
fillpage(WSURL); // Load Page PC
mobileload(WSURL); // Load Page Mobile
window.SpecificURLReady = true;
}
}, 100);
window.addEventListener("unload", function(){SetCookie(window.UWDV, window.SpecificURL);}); // Add Save Page Status Function
(FYI: The fillpage & mobileload functions set window.SpecificURL to whatever the choice was.)
(FYI2: This is fired 2 seconds after the website loads)

I fixed it by switching from Arrays to save data, to a string. Sorry for any inconvenience to someone trying to solve this!

Why does my request-promise function work in Chrome but not Firefox or Safari?

I'm trying to use a script for a webpage that scrapes and then parses an RSS feed using request-promise. From what I understand, request-promise has to run server-side, so I'm calling the script externally in my html. I've been using localStorage.setItem and localStorage.getItem to pass the variables between the external script and another embedded script that assigns the variables to html elements that should be displayed throughout the page as text.
In Chrome, when the page first loads, it's blank, but then works fine after I refresh it once. In Firefox and Safari, it remains blank no matter how many times I refresh. The issue seems to be that the html is not "receiving" the variables from localStorage.getItem. I suspect it has something to do with the way the different browsers are handling the request-promise function, but I'm stumped. What am I doing wrong?
Here's the request-promise script:
var xmltext
var latlonquery, latquery, lonquery, url
const rp = require('request-promise')
const options = {
headers: {'user-agent': 'node.js'}
}
function doQuery() {
latlonquery = new URLSearchParams(window.location.search)
latquery = latlonquery.get("lat")
lonquery = latlonquery.get("lon")
url = "https://forecast.weather.gov/MapClick.php?lat=" + latquery + "&lon=" + lonquery + "&FcstType=digitalDWML"
}
function doRequest() {
return rp(url,options).then(function(html){
return html
})
}
doQuery()
doRequest().then(function(html){
xmltext = html
localStorage.setItem("xml_says_this", xmltext)
localStorage.setItem("lat_says_this", latquery)
localStorage.setItem("lon_says_this", lonquery)
})
You can see an example of the problem in action here.

Refresh/Retrigger "Fetch" in a HTML/javascript

First things first: I don't know anything about coding and I basically build my whole HTML file by CMD+C and CMD+V what I found with lots of Google searches and change just what is needed so it fits into what I intended. Interestingly I got a result that is 95% what I wanted.
Now I have just one last thing I can't set (or find about in Google) so hopefully someone can answer it here. [Trying to put in as many information as I can]
I made a simple one page HTML that shows the date/time and plays an audio livestream from my PC when opened.
I also want it to display the "Now Playing" information. After a lot of searches, I finally found a solution that even I could make with Dreamweaver.
I used the "fetch script" (or is it called Fetch APP?) to get a txt file that my music player gives as output with the current song information. That fetch script get the data and put it into a
The problem is that is only seems to do it once at page load and not every few seconds. The contents in the txt change whenever a new song plays and I want the displayed data on the HTML to stay current as well.
So how do I set that fetch script to re-fetch the txt contents every ~10 seconds?
Here is my current fetch script:
<script>
var url = 'NowPlaying.txt';
var storedText;
fetch(url)
.then(function(response) {
response.text().then(function(text) {
storedText = text;
currentSong();
});
});
function currentSong() {
document.getElementById('thesong').textContent = storedText;
}
</script>
For making my HTML I use "Dreamweaver 2019" on "Mac OS 11 Big Sur"
It's a single HTML and all files/assets the HTML accesses (The Audio, Background Images and the TXT file are in the same directory/network)
I hope that provides all necessary details.
Oh and what I tried already is to copy the line "var t = setTimeout(fetch, 100);" into the script, because this seems to be what keeps the clock javascript current and I hoped it would do the same with fetch
Also attached a screenshot of the HTML "live" in chrome >> screenshot
As you can see, the bottom is supposed to have the "Now Playing" information displayed (please ignore that in this example the text is cut to the right, the current information is too long, so it cuts off at the end)

You cam simply use setInterval to call your fetch every 10th seconds.
Just wrap your function in to a function and call that function in setInterval.
=> Also, at sometime if you would like to stop the fetch request on an event like a button click or something you can use clearInterval to stop the fetch request without refreshing the page.
Run snippet below to see the function is getting called every 10th seconds.
var url = 'NowPlaying.txt';
var storedText;
//10 Seconds fetch
function fetch10Seconds() {
//Fetch
fetch(url)
.then(function(response) {
response.text().then(function(text) {
storedText = text;
currentSong();
});
});
console.log('Fetch again in 10 Seconds')
}
//Call function every 10 seconds
setInterval(fetch10Seconds, 10000); // 10 seconds are defined in miliseconds
//Call this on fetch every 10 seconds
function currentSong() {
document.getElementById('thesong').textContent = storedText;
}

You can create a loop using setInterval function
var url = 'NowPlaying.txt';
var storedText;
setInterval(()=>{
fetch(url)
.then(function(response) {
response.text().then(function(text) {
storedText = text;
currentSong();
});
});
},10000) // in miliseconds
function currentSong() {
document.getElementById('thesong').textContent = storedText;
}

Try this:
function doFetch() {
setTimeout(() => {
fetch(url)
.then(response => {
response.text().then(text => {
storedText = text;
currentSong();
doFetch();
});
});
}, 10000);
}
doFetch();
This waits for the data to be fetched before waiting another 10 seconds and fetching again. Using setInterval will get the data every 10 seconds on the dot regardless of the success of the last run of the function.

jQuery: Controller function not being executed correctly with ajax

I am programming a web application in C# MVC which dynamically loads information from a server in order to improve the speed.
Currently I have some errors and I am unable to diagnose why these are causing issues so I'll try my best to explain what's happening:
This div is created many times and grabs the ID for each project.
<div>
Open:
#{string JiraKey = item.JiraProjectKey;}
<span id="JiraOpen" onload="GetOpenJira"></span>
</div>
Then in the span, the script GetOpenJira is initiated:
<script id="GetOpenJira">
var url = "/HicVault/Projects/GetNumJiraOpenByKey";
var key = $('#JiraKey').val();
$.get(url, { input: key }, function (data) { $("#JiraOpen").html(data) });
</script>
This script SHOULD asynconously ask the controller to complete the function GetNumJiraOpenByKey with the JiraKey being used as a parameter. The function in the controller is:
[HttpGet]
public ActionResult GetNumJiraOpenByKey(string JiraProjectKey)
{
var sJql = "project = \"" + JiraProjectKey + "\" and status = \"Open\"";
var resultFieldNames = new List<string> { "resolution" };
Issues issues = new JiraClient(new JiraAccount()).GetIssuesByJql(sJql, 0, 1000, resultFieldNames);
return PartialView(issues.total);
}
Essentially this function returns an int once it has counted all of the issues for that particular project. I would like this to be done with AJAX using jQuery to load these values after the page has been loaded to vastly increase speed. (Currently without AJAX, pages take >30 sec to load).
Thanks if anyone can help.
EDIT: I suppose I should ask a question, currently with this code the page loads and after around 5 seconds, a server 500 error appears in the console stating there is an Internal Server Error. I know this is a general error, going in deeper points to the line:
"$.get(url, { input: key }, function (data) { $("#JiraOpen").html(data) ".
I am guessing either the logic of my work isn't possible in Razor MVC + JS, or I am getting the fundamentals of jQuery ajax get wrong?

rewrite your script as following...
<script id="GetOpenJira">
var url = "/HicVault/Projects/GetNumJiraOpenByKey";
var key = $('#JiraKey').val();
$.get(url, { JiraProjectKey: key }, function (data) { $("#JiraOpen").html(data) });
</script>

Reload XML data without reload page

I get xml data from Mysql.. And change anything save again to mysql.
Now i want to see changed data without reload page. How can i do it ?
I get data like that:
downloadUrl("gxml.php", function(doc) {
var xmlDoc = xmlParse(doc);
var markers = xmlDoc.documentElement.getElementsByTagName("marker");
i`v tried to do it calling function like that. but didnt work..
function reloaddata()
{
downloadUrl("gxml.php", function(doc));
}
Thanks..

Maybe try using ajax. Pass some values from php to ajax via javascript. And then in ajax retrieve xml data do what ever you want with it. and give a response. Then use
success: function(){
//append it to your html.
}

your code is OK, the problem is about when it is invoked. You will need to pull the data as a response of a timer event, or some other event more related to your logic.
setInterval("downloadMarkers()", 10000); // 10 seconds per call.
function downloadMarkers() {
downloadUrl("gxml.php", function(doc) {
var xmlDoc = xmlParse(doc);
var markers = xmlDoc.documentElement.getElementsByTagName("marker");
});
}