emiliano1

// recursive function to flatten an n-level deep array
function flattenArray(array, result = []) {
    var arrayLength = array.length;

    for (var i = 0; i < arrayLength; i++){
        if (array[i] instanceof Array) {
            // if item is an Array, call the function recursevely
            result.concat(flattenArray(array[i], result));
        } else {
            // if item is not an Array, simply add it to final result