Given an array write code to delete the first even element from the array and return the modified array.
Note: You can create a new array and return it
let arr = [1,5,9,8,6,4,5,2,5];
function deleteFirstEven(arr){
//write code here
}
deleteFirstEven(arr); // should return [1,5,9,6,4,5,2,5]