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How to store value in localStorage with certain format

how can I have a localStorage value stored as
I have the value as:
ald:20221219_1833|atrv:lMh2Xiq9xN0-is9qy6DHBSpBL3ylttQQew
but its like it has an arrow to expand and shows the same value only without the {}, an also how do I insert those keys with the slash and 2dots, have the value inside "", I thought it was an object but after trying to insert the value in a variable
var lsvalue = {
/: "ald:20221219_1833|atrv:lMh2Xiq9xN0-is9qy6DHBSpBL3ylttQQew",
}
localStorage.setItem('rmStore', JSON.stringify(lsvalue))
but it did not work, any thoughts?
tried to code mentioned

Store it as a string, the debug tool is automatically interpreting this as an object.
var lsvalue = '{"/":"ald:20221219_1833|atrv:lMh2Xiq9xN0-is9qy6DHBSpBL3ylttQQew"}';
localStorage.setItem( 'rmStore', lsvalue )

If I'm understanding this correctly, you want your value to be just this string: "ald:20221219_1833|atrv:lMh2Xiq9xN0-is9qy6DHBSpBL3ylttQQew".
So, you can just assign that string alone to lsvalue, and set it to localStorage:
var lsvalue = "ald:20221219_1833|atrv:lMh2Xiq9xN0-is9qy6DHBSpBL3ylttQQew";
localStorage.setItem('rmStore', lsvalue);
Or just set that string as the value:
localStorage.setItem('rmStore', 'ald:20221219_1833|atrv:lMh2Xiq9xN0-is9qy6DHBSpBL3ylttQQew');
Both of the above solutions result in the below:
But, if you're looking to set an object to localStorage:
var lsvalue =
{
'storedObject' : "ald:20221219_1833|atrv:lMh2Xiq9xN0-is9qy6DHBSpBL3ylttQQew"
}
localStorage.setItem('rmStore', JSON.stringify(lsvalue));
This setup results in the below:

Stringify a key value pair in Javascript and session storage

I have code as follows:
var employee = {};
employee["fullname"] = document.userForm.fullname.value;
employee["license"] = document.userForm.license.value;
employee["address"] = document.userForm.address.value;
employee["dob"] = document.userForm.dob.value;
employee["city"] = document.userForm.city.value;
employee["state"] = document.userForm.state.value;
employee["zip"] = document.userForm.zip.value;
employee["sex"] = document.userForm.sex.value;
sessionStorage.setItem("session", JSON.stringify({"employees": [employee]}));
Is it correct to store it this way? Also if this is correct , how do I retrieve the information using getItem?

retrieve it with :
var mySessionData = sessionStorage.getItem("session");
var mySessionDataParsed = JSON.parse( mySessionData );
edit
Is it correct to store it this way
//sessionStorage.setItem("session", JSON.stringify({"employees": [employee]}));
sessionStorage.setItem("session", JSON.stringify( employee ) );
// this way is suffisant !
// but if you prefer an array you can go with your way too !

You can also use dot and/or bracket notation.
sessionStorage["session"] = JSON.stringify({"employees": [employee]});
// or
sessionStorage.session = JSON.stringify({"employees": [employee]});
and the same goes for the right hand side of an assignment.
data = sessionStorage["session"];
// or
data = sessionStorage.session;
No need to invoke the get and set item methods as you just add needless overhead.

JS : Objects into array

i'm trying to create object named client. and put it into a array. And after this, read the name of the 1st client.
Exemple :
client1 {nom : "marco", prenom : "chedel", adresseMail : "ssss#ggg.com"};
and put this client into an array like bellow.
listClients[client1]
what i did :
var listClients = [];
var client1 = {nom : "chedel",prenom:"Marco",adresseMail:"marco#gmail.com"};
listClients.push(client1);
var client2 = {nom : "De Almeida",prenom:"Jorge",adresseMail:"jorge#gmail.com"};
listClients.push(client2);
function afficheClients(tableau){
for (i=0;i<tableau.length;i++)
{
var c = tableau[i];
document.write(c[adresseMail]);
// This ^^ doesn't work, it says :adresseMail isn't definied in c
}
}
afficheClients(listClients);

You're treating adressMail as a variable and not as a string:
use
document.write(c["adresseMail"]);

There are two ways to access properties of an object:
obj.prop
obj['prop']
You are doing the following mixture which doesn't work: obj[prop].
Fix your code to c.adresseMail or c['adresseMail'] and it will work.

Either reference it using a string:
document.write(c['adresseMail']);
or using dot notation:
document.write(c.adresseMail);
And, yes - document.write should be avoided.

using a variable in mongodb update

Using Meteor, I'm trying to perform an update like the following:
Items.update(Session.get('selectedItem'), {'$set': {'directions.0.name': area.value}})
But I'm struggling with how to set the array index of directions dynamically, with something like this:
var index = //a value determined dynamically
Items.update(Session.get('selectedItem'), {'$set': {'directions[index]name': area.value}})
This doesn't work because [index] is wrapped in a string. I also tried to form a custom string, like this:
var string = 'directions.'+itemIndex+'.name'
Items.update(Session.get('selectedItem'), {'$set': {string: area.value}})
But that doesn't work. Any idea on how to do this?

You need to build up your $set object programmatically:
var setModifier = { $set: {} };
setModifier.$set['directions.' + index + '.name'] = area.value;
Items.update(Session.get('selectedItem'), setModifier);
Update
If your JavaScript environment supports computed property names (e.g. node.js 4+), you can do this in one step:
Items.update(Session.get('selectedItem'), { $set: {
['directions.' + index + '.name']: area.value
}});

Is it possible to append value in an existing object - jquery

Consider i am having an object "req".
When i use console.log(req) i get
Object { term="s"}
My requirement is to append an value with the existing object.
My expected requirement is to be like this:
Object { term="s", st_id = "512"}
Is it possible to do the above?
If yes, how ?
Thanks in advance..

There are several ways to do it;
Plain javascript:
var req = { "term" : "s" };
req.st_id = "512";
Because javascript objects behaves like associative arrays* you can also use this:
var req = { "term" : "s" };
req["st_id"] = "512";
jQuery way $.extend():
var req = { "term" : "s" };
$.extend(req, { "st_id" : "512" });

You can do this in a couple of ways:
req.st_id = "512";
or
req["st_id"] = "512";
The second of these is especially useful if the variable name is dynamic, e.g. a variable could be used instead of the string literal:
var key = "st_id";
req[key] = "512";

Yes this is possible, to add properties to a value simply use the following syntax:
req.st_id = "512";