javascript help to change a method structure

I have the following code, It is a recursive function that I use it to parse complex Json responses, it detects if the current code is a String, JsonObject or Array. This function is very helpful for those who use Karate or they want to parse complex JSON response

function parseIt0(data, [key, ...path]) {
    return (Array.isArray(data) ? data : [data]).reduce((acc, obj) => {
        if (path.length) {
            acc.push(parseIt0(obj[key], path));
        } else if (obj[key]) {
            acc.push(obj[key]);
        }
        return acc;
    }, []).flat();
}

function getValue(response, s) {
    if (!response) return null;
    if (!s) return response;
    var path = s.split('.');
    return parseIt0(JSON.parse(response), path).flat();
}

//which can be used like this
var response2 = '{"data":[{"type":"node--base_product_coffee","id":"6dbb5a52-13ea-4f74-8af9-eb9e3ba45918","date":"1990","data1":[{"type1":"product_coffee1","id1":"6dbb5a52-13ea-4f74-8af9-eb9e3ba45777","date1":[{"res":"oui"},{"res":"non"}]},{"type1":"product_coffee2","id1":"6dbb5a52-13ea-4f74-8af9-eb9e3ba45666","date1":[{"res":"ouiii"},{"res":"nonnn"}]}]}]}';

console.log(getValue(response2, 'data.data1.date1.res');
//which gives : ['oui','non','ouiii','nonnn']

The problem with this code is I can not use it in Karate Framework because it gives me error on this part [key, ...path], it does not accept it.

So my question if anyone can help me to write the same function parseIt0 like this parseIt0(response, path) the path will be an array

I started by writing this but it I did not successed

removeItemOnce = function(arr, value) {
    var index = arr.indexOf(value);
    if (index > -1) {
        arr.splice(index, 1);
    }
    return arr;
}

function parseIt1(data, path) { 
    return (Array.isArray(data) ? data : [data]).reduce((acc, obj) => {
        if (path.length) {
            acc.push(parseIt1(obj[path[0]], removeItemOnce(path, path[0])));
        } else if (obj[path[k]]) {
            acc.push(obj[path[0]]);
        }
        return acc;
    }, []).flat();
}

function getValue2(response, s) {
    if (!response) return null;
    if (!s) return response;
    var path = s.split('.');
    return parseIt1(JSON.parse(response), path).flat();
}

// this in order to use it like the previous code
console.log(getValue2(response2, 'data.data1.date1.res');

Can anyone help me Thanks