set and get array inside cookie in javascript

1JSON encode it, effectively producing a string like "{name:'myname',age:'myage'}"
2which you put in a cookie, retrieve when needed and decode back into a 
3JavaScript array/object.
4
5Example - store array in a cookie:
6----------------------------------
7var arr = ['foo', 'bar', 'baz'];
8var json_str = JSON.stringify(arr);
9createCookie('mycookie', json_str);
10
11Later on, to retrieve the cookie's contents as an array:
12--------------------------------------------------------
13var json_str = getCookie('mycookie');
14var arr = JSON.parse(json_str);

1cookie = {
2    set: function(name, value) {
3        document.cookie = name+"="+value;
4    },
5    get: function(name) {
6        cookies = document.cookie;
7        r = cookies.split(';').reduce(function(acc, item){
8            let c = item.split('='); //'nome=Marcelo' transform in Array[0] = 'nome', Array[1] = 'Marcelo'
9            c[0] = c[0].replace(' ', ''); //remove white space from key cookie
10            acc[c[0]] = c[1]; //acc == accumulator, he accomulates all data, on ends, return to r variable
11            return acc; //here do not return to r variable, here return to accumulator
12        },[]);
13    }
14};
15cookie.set('nome', 'Marcelo');
16cookie.get('nome');