for loop over an array js index code example

Example 1: javascript iterate array

var txt = "";
var numbers = [45, 4, 9, 16, 25];

numbers.forEach(function(value, index, array) {
  txt = txt + value + "<br>";
});

Example 2: how to iterate through an array in javascript

const array = ["one", "two", "three"]
array.forEach(function (item, index) {
  console.log(item, index);
});