[Solved] Addition to Subtraction logic [closed]

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Here’s the jsfiddle update to handle subtraction:

https://jsfiddle.net/wvary/2u5xtkv2/8/

Function taken from the new fiddle:

//---Insert random pizza slices
function insertPizzas() {

    selected = [];
    result = 0;

    //---Generate aleatory pieces
    var rand = 0;

    while (selected.length < 2) {

        //---Making sure first number is greater than 0 (0 is the index so it is actually has a value of 1)
        while (selected.length === 0 && rand === 0) {
            rand = Math.floor(Math.random() * total);
            console.log('first: ' + rand);
        }

        //---Making sure second number is greater than first number
        while (selected.length === 1 && rand >= result) {
            rand = Math.floor(Math.random() * total);
            console.log('second: ' + rand);
        }

        //---Because of the number values, we can simply use the index difference as the values
        //---Of course, we have to update our code if the values are different
        if (selected.length === 0) {
            result = rand;
        } else {
            result -= rand;
        }

        selected.push(rand);

    }

    //---Clear the slices
    slices.html("");

    //---Add the new slices
    selected.forEach(function(number) {

        var img = $("<img/>");

        img.attr("src", pizzas[number].image);

        slices.append(img);

    });

}

A few things to take notice:

  1. We must loop in the first iteration to make sure the first index is not 0 because first number minus second number must be greater than 0 since our choices are 1 through 8.
  2. We must loop in the second iteration to make sure the second number is less than the first number for the same reason as #1.
  3. Since our values are all difference of 1, we can simply use index as our difference.
  4. Also we must initialize the rand value to 0 for the first loop to work.

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solved Addition to Subtraction logic [closed]