CookingByNumbers

function solve(arr) {
    let [start, operation1, operation2, operation3, operation4, operation5]
        = [Number(arr[0]), arr[1], arr[2], arr[3], arr[4], arr[5]];

    let chop = (num) =>  num / 2;
    let dice = (num) =>  Math.sqrt(num);
    let spice = (num) =>  num + 1;
    let bake = (num) =>  num * 3;
    let fillet = (num) => num -= num * 0.20;

    for (let operation of [operation1, operation2, operation3, operation4, operation5]) {
        switch(operation) {
            case 'chop': start = chop(start);
                break;
            case 'dice': start = dice(start);
                break;
            case 'spice': start = spice(start);
                break;
            case 'bake': start = bake(start);
                break;
            case 'fillet': start = fillet(start);
                break;
        }

        console.log(start);
    }
}