script.js

// 1) Always Hungry 

    console.log() //print empty line
    console.log("1. The results are as follows: ")
    function alwaysHungry(arr) {
        var foodCount = 0;
        for(let i = 0; i <arr.length; i++) {
            if(arr[i] == "food") {
                console.log("yummy");
                foodCount++;
            }
        }
        if(foodCount == 0) {
            console.log("I'm hungry")
        }
    }
    // this should console log "yummy", "yummy"
    alwaysHungry([3.14, "food", "pie", true, "food"]);

    // this should console log "I'm hungry"
    alwaysHungry([4, 1, 5, 7, 2]);
    console.log() //print empty line

// 2) High Pass Filter

    console.log("2. The results are as follows: ")
    function highPass(arr, cutoff) {
        var filteredArr = [];
        for(let i = 0; i < arr.length; i++) {
            if(arr[i] > cutoff) {
                filteredArr.push(arr[i]);
            }
        }
        return filteredArr;
    }

    var result = highPass([6, 8, 3, 10, -2, 5, 9], 5);
    console.log(result);
    console.log() //print empty line

// 3) Better Than Average

    console.log("3. The result is: ")
    function betterThanAverage(arr) {
        var sum = 0;

        for(let i=0; i < arr.length; i++) {
            sum += arr[i];
        }

        var avg = sum / arr.length;
        var count = 0

        for(let i=0; i <arr.length; i++) {
            if(arr[i] > avg) {
                count++;
            }
        }
        return count;
        }
    
    var result = betterThanAverage([6, 8, 3, 10, -2, 5, 9]);
    console.log(result)
    console.log() //print empty line

// 4) Array Reverse

    console.log("4. The results are as follows: ")
    function reverse(arr) {
        var begin = 0;
        var end = arr.length - 1;
        while(begin < end) {
            var temp = arr[begin];
            arr[begin] = arr[end];
            arr[end] = temp;
            begin++;
            end--;
        }
        // your code here
        return arr;
    }
    
    var result = reverse(["a", "b", "c", "d", "e"]);
    console.log(result); 
    console.log() //print empty line

// 5) Fibonacci Array

    console.log("5. The results are as follows: ")
    function fibonacciArray(n) {

        var fibArr = [0, 1];
        while(fibArr.length < n) {
            var prev = fibArr[fibArr.length-1];
            var prevprev = fibArr[fibArr.length-2];
            fibArr.push(prev + prevprev);
        }
        return fibArr;
    }
    
    var result = fibonacciArray(10);
    console.log(result);