const toNumbers = arr => arr.map(Number); toNumbers(['1', '2', '3','4']); // [1, 2, 3, 4]
var a = "1,2,3,4"; var b = a.split(',').map(function(item) { return parseInt(item, 10); });
var myInt = parseInt("10.256"); //10 var myFloat = parseFloat("10.256"); //10.256
// CONVERT ARRAY STRING TO ARRAY NUMBER const arrStr = ["1", "3", "5", "9"]; const nuevo = arrStr.map((i) => Number(i)); console.log(nuevo); // [1,3,5,9];