https://www.combrailles-auvergne-tourisme.fr/content/mu-plugins/apidae-themosis/dist/js/AltimaxCookie.class.js

1class AltimaxCookie {
2    static readCookie(name) {
3        let nameEQ = name + "=";
4        let ca = document.cookie.split(';');
5        for (let i = 0; i < ca.length; i++) {
6            let c = ca[i];
7            while (c.charAt(0) == ' ') c = c.substring(1, c.length);
8            if (c.indexOf(nameEQ) == 0) {
9                let value = decodeURI(c.substring(nameEQ.length, c.length))
10                return (value && value != null && value != 'null') ? value : false;
11            }
12        }
13        return false;
14    };
15
16    static writeCookie(cname, cvalue, exhours) {
17        let d = new Date();
18        d.setTime(d.getTime() + (exhours * 60 * 60 * 1000));
19        let expires = "expires=" + d.toUTCString();
20        document.cookie = cname + "=" + encodeURI(cvalue) + ";" + expires + ";path=/";
21    };
22
23    static removeCookieItem(cookie, item) {
24        if (this.inArray(item, cookie)) {
25            let index = cookie.indexOf(item);
26            if (index > -1)
27                cookie.splice(index, 1);
28        }
29
30        return cookie;
31    }
32
33    static addCookieItem(cookie, item) {
34        if (!this.inArray(item, cookie)) {
35            if (cookie.indexOf('null') > -1)
36                this.removeCookieItem(cookie, 'null');
37            cookie.push(String(item));
38        }
39
40        return cookie;
41    }
42
43    static inArray(needle, haystack) {
44        let length = haystack.length;
45        for (let i = 0; i < length; i++) {
46            if (haystack[i] == needle)
47                return true;
48        }
49
50        return false;
51    }
52}