e5.js

// E5. 
// Write a function that takes two parameters: an array and a Number;
// The function returns the index of 
// the element's first occurence in the array;

// should return position of number in array
function findPositionOfNumberInArray(array, number){
    // iterate over the array -> for loop

    // compare the item of each position in the array to the <givenNumber>
    //                        -> equality operator === 
    //                        -> if statement

    // return the position of the current item
    //                        -> return
    
}

// BONUS
// If the number is not in the array, return the value -1


let a = [15, 16, 17, 15];
let returned = findPositionOfNumberInArray(a, 17); 
console.log(returned);  // Should print 2

returned = findPositionOfNumberInArray(a, 16);
console.log(returned);  // Should print 1