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Javascript print JSON Object

I want to parse this JSON array and print the salary so this what I have tried so far
there is nothing logged in the Console
if (data.action == 'SendArray') {
let invites = data.invites
const obj = JSON.parse(invites)
const myJSON = JSON.stringify(obj);
console.log(myJSON.salary)
}
JSON:
{"factioname":"sp-force","inviter":"MohammedZr","salary":5000},
{"factioname":"air-force", "inviter":"Admin","salary":8000}

This const myJSON = JSON.stringify(obj) turns your object back into a string, which you don't want.
I've done some setup to get your data matching your code but the two things you should note are:
Iterating through the array of invites using for .. of (you could use forEach instead) and
Using deconstruction to pull out the salary
data = { action: 'SendArray'
, invites: '[{"factioname":"sp-force","inviter":"MohammedZr","salary":5000},{"factioname":"air-force", "inviter":"Admin","salary":8000}]'
}
if (data.action == 'SendArray') {
let invites = data.invites
const obj = JSON.parse(invites)
for ({salary} of JSON.parse(invites))
console.log(salary)}

myJSON is an array of objects. To log in console need to get each object. we can use forEach to get each object and then can console log the salary key.
let myJSON =[
{"factioname":"sp-force","inviter":"MohammedZr","salary":5000},
{"factioname":"air-force", "inviter":"Admin","salary":8000}];
myJSON.forEach(obj=> {
console.log(obj.salary);
});

Access specific data on Json - NodeJS

I'm trying to access data from a json but i can't... I have tried some explanations i found on the internet, but i guess there is something wrong on my code.
I'm getting data from a sql server database using the following code:
async function getLogin1(Operador, Senha) {
try {
let pool = await sql.connect(config);
let getLogin1 = await pool.request()
.input('input_parameter', sql.VarChar, Operador)
.input('input_parameter1', sql.VarChar, Senha)
.query("SELECT Codigo, Operador, Senha FROM Usuario where Operador = #input_parameter and Senha = #input_parameter1");
return getLogin1.recordsets;
}
catch (error) {
console.log(error);
}
}
So i get the recordsets here and put in a json:
router.route("/Login1").get((request, response) => {
console.log(request.body.operador);
console.log(request.body.senha);
Operador = request.body.operador;
Senha = request.body.senha;
dboperations.getLogin1(Operador, Senha).then(result => {
console.log(Operador, Senha);
response.json(result);
var json = JSON.stringify(result);
console.log(json);
})
})
On the console it shows the json:
[[{"Codigo":1,"Operador":"Username","Senha":"123456"}]]
I would like to get the individual data (codigo, operador and senha) to put in a individual string each one, but i cant access the data.
When I try like json[0] for example i get all the json (because my json has every info on the first position i guess), and when i try json.Codigo (for example) i get a "undefined" error.
What am i doing wrong and what the best way to solve?
And sorry for the low knowledge, this is my very first api.
(And yes, this is a login code and its not the best way to treat user data but its a very small system for intern use)

Your JSON "result" is:
[[{"Codigo":1,"Operador":"MASTER","Senha":"TERA0205"}]]
So it is an array of array containing one object with keys Codigo, Operador, Senha.
To get the value of the Codigo of that object you would likely need to
access it like
var CodigoVal = result[0][0].Codigo; // 1
var OperadorVal = result[0][0].Operador; // "MASTER"

Looks like json has nested array, if so json[0] will give inner array so you have to probably do like json[0][0].Codigo
[
[
{ "Codigo":1,
"Operador":"Username",
"Senha":"123456"
}
]
]

If we look at the JSON you posted above, we have an array which has an array with an object at its first index.
So to get access to that object you need to do:
const obj = json[0][0];
Now from obj you can extract Codigo, Operado and Senha like
const condigo = obg.Condigo;
const operado = obg.Operado;
const senha = obg.Senha;
You can also directly access them like
var codigo = json[0][0].Codigo;
var operador = json[0][0].Operador;
var senha = json[0][0].Senha;

json.Codigo doesnt work because your json has a array in it. Which has the object you are trying to get data from.
json[0] returns everything because that gives you the object from that array
so if you want Codigo try json[0][0].Codigo
I hope this helped you!

JSON.parse does not convert Stringified JSON Array

[
{ comicid: "5f55e91271b808206c132d7c", purchasetype: "pb_single" }
]
Above is my JSON Array that is stringified,I tried to JSON.parse and other functions like iterating it in a for loop but the key values also got scrambled.
Is there any way or an npm method that could instantly output the retrieved variable?
var cartItemFromLocalStorage = JSON.parse(localStorage.getItem("cartitem"));
if (cartItemFromLocalStorage != null) {
console.log("It came defined");
console.log("This is OG Array: " + cartItemFromLocalStorage);
let cartItemObject = {
//set object data
comicid: this.state.comicId,
purchasetype: this.state.purchaseType,
};
console.log(cartItemObject);
cartItemFromLocalStorage.push(cartItemObject);
localStorage.setItem("cartitem", result); //localstorage only supports strings
toast.success("Item Added to cart");
}
I checked the consoles and the states are putting up the data correctly.
I'm an extreme beginner in react js, help is much appreciated

The "JSON" you have written is actually JavaScript, not JSON. To convert it JSON use the JSON.stringify function, like so
> JSON.stringify([
{ comicid: "5f55e91271b808206c132d7c", purchasetype: "pb_single" }
]);
'[{"comicid":"5f55e91271b808206c132d7c","purchasetype":"pb_single"}]'
and then replace the value in localStorage with it.
Even easier would be to type into the developer console
localStorage.setItem("cartitem", JSON.stringify([
{ comicid: "5f55e91271b808206c132d7c", purchasetype: "pb_single" }
]));

How do I set multiple values of a JSON object?

So I've been working on this project but I'm stuck because I can't figure out how I should go about setting the other values of this new JSON object. So basically on the front end I have this:
HTML page view. The 'cat4' ID is the new object I tried to create, and illustrates the error I'm trying to fix. The problem is that I'm having trouble setting the LIMIT value of newly created objects (or multiple values at all). Here is the code where the object is created:
function sendCat()
{
window.clearTimeout(timeoutID);
var newCat = document.getElementById("newCat").value
var lim = document.getElementById("limit").value
var data;
data = "cat=" + newCat + ", limit=" + lim;
var jData = JSON.stringify(data);
makeRec("POST", "/cats", 201, poller, data);
document.getElementById("newCat").value = "Name";
document.getElementById("limit").value = "0";
}
In particular I've been playing around with the line data = "cat=" + newCat + ", limit=" + lim; but no combination of things I try has worked so far. Is there a way I can modify this line so that when the data is sent it will work? I find it odd that the line of code works but only for setting one part of the object.

The JSON.stringify() method converts a JavaScript object or value to a JSON string, optionally replacing values if a replacer function is specified or optionally including only the specified properties if a replacer array is specified.
MDN
I think this is what you want:
const newCat = 'Meow';
const newLimit = 5;
const data = {
cat: newCat,
limit: newLimit
}
console.log(JSON.stringify(data));

What you're referring to as a 'JSON object' is actually just a javascript object, you can make one using object literal syntax. An object literal with multiple properties looks like this:
var data = {
cat: newCat,
limit: lim
};
makeRec("POST", "/cats", 201, poller, JSON.stringify(data));
assuming the fifth parameter to makeRec is supposed to be the POST request body as stringified JSON, as your code seems to imply

when saving an array of objects as a JSON, I need to use the following format in Sample.txt to not run into parsing errors:

when saving an array of objects as a JSON, you need to use the following format in Sample.txt to not run into parsing errors:
[{"result":"\"21 inches = 21 inches\"","count":1},{"result":"\"32 inches = 32 inches\"","count":2}]
I'm new to JSON and searching over this for since last 4 days. I tried different approaches of storing an array of objects but no success. My first and simplest try is like this:
function createData() {
//original, single json object
var dataToSave = {
"result": '"' + toLength.innerText +'"',
"count": counter
};
//save into an array:
var dataArray = { [] }; //No idea how to go ahead..
var savedData = JSON.stringify(dataToSave);
writeToFile(filename, savedData); //filename is a text file. Inside file, I want to save each json object with , in between. So It can be parsed easily and correctly.
}
function readData(data) {
var dataToRead = JSON.parse(data);
var message = "Your Saved Conversions : ";
message += dataToRead.result;
document.getElementById("savedOutput1").innerText = message;
}

To make an array from your object, you may do
var dataArray = [dataToSave];
To add other elements after that, you may use
dataArray.push(otherData);
When you read it, as data is an array, you can't simply use data.result. You must get access to the array's items using data[0].result, ... data[i].result...