JSFiddle - React, Tailwind, and code Playground

JavaScript

var array = [1,2,3,4,5,6,7,8];

console.log(array);

change(array);
console.log(array);
function change(a)
{
    var t = a[a.length -1] + 10;
    var ta = a;
    console.log('ta = '+ ta);
    ta.push(t);
      console.log('ta1 = '+ ta);
}