sum of odd and even numbers code example

Example 1: javascript get every odd element

//you can use the css nth-child property like this:
var second-child = document.querySeletorAll('[your element name]:nth-child(odd)');

Example 2: check odd numbers numpy

# Input
arr = np.array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
arr[arr % 2 == 1]
#> array([1, 3, 5, 7, 9])