Add cookie creation and deletion (#2)

Author: sudocode1

dlib.js

@@ -34,4 +34,22 @@ DLib.createBox = ({title, text, titleType='h3', textType='span', breakAfterTitle
 
     //return box;
 }
+
+
+/**
+ * @param {string} name - The name of the cookie
+ * @param {string} value - The cookie's value
+ * @param {number} expire - In how many seconds should the cookie expire
+ */
+DLib.createCookie = (name, value, expire=31536000) => {
+    document.cookie = `${name}=${value};secure;max-age=${expire};same-site=lax;`;
+};
+
+/**
+ * 
+ * @param {string} name - The cookie to delete 
+ */
+DLib.deleteCookie = (name) => {
+    document.cookie = `${name}="";max-age=0;`;
+}
 // @license-end