array = ['1','2','3']
arrayInt = array.map(Number)
//arrayInt = [1,2,3]
var a = "1,2,3,4";
var b = a.split(',').map(function(item) {
return parseInt(item, 10);
});
const stringArr = ["5", "4", "6", "2"];
const numArr = stringArr.map((item) => parseInt(item, 10));
let arrayOfNumbers = arrayOfStrings.map(Number);
//convert array to string first and use this code
var y =x.toString().split(',').map(Number)