Редактирование ранее объявленной переменной

console.log(itest('123456.0'))
//
function test(id) {
    id = +id
    return id
}

var response = UrlFetchApp.fetch(zapros)
 
var data = JSON.parse(response.getContentText());
 
var znachenie = data.orders[0].id
 
Logger.log(znachenie)

//var znachenie = data.orders[0].id
var znachenie = 'тут_его_значение'

const znachenie = +data.orders[0].id

function myFunction() {
  
///Получаем ID заказа
 
const phone = '79111111111'
const apikey= 'APIKEY';
let url = 'URL';
let param1 = 'filter[customer]';
let param11 = phone;
let parametr1 = param1 + '=' + param11;
let param2 = 'status'
let param22 = 'print';
let parametr2 = param2 + '=' + param22;
 
let zapros = url + apikey + '&' + parametr1 + '&' + parametr2
 
var response = UrlFetchApp.fetch(zapros)
var data = JSON.parse(response.getContentText());
 
var znachenie = data.orders[0].id
 
Logger.log(znachenie)
 
 
}

function myFunction() {
  
///Получаем ID заказа
 
const phone = '79111111111'
const apikey= 'APIKEY';
let url = 'URL';
let param1 = 'filter[customer]';
let param11 = phone;
let parametr1 = param1 + '=' + param11;
let param2 = 'status'
let param22 = 'print';
let parametr2 = param2 + '=' + param22;
 
let zapros = url + apikey + '&' + parametr1 + '&' + parametr2
 
var response = UrlFetchApp.fetch(zapros)
var data = JSON.parse(response.getContentText());
 
const znachenie = +data.orders[0].id
 
Logger.log(znachenie)

const znachenie = data.orders[0].id.toFixed(0)

let a = 1234.0
console.log(a)