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js/cookie.js

@@ -0,0 +1,53 @@
+/**
+ * A simple cookie reader/writer with JSON support.
+ * 
+ * @example
+ * // Create a cookie
+ * CookieManager.setCookie('username', 'JohnDoe', 7);
+ * 
+ * @example
+ * // Read a cookie
+ * const username = CookieManager.getCookie('username');
+ * console.log(username); // Outputs: JohnDoe
+ * 
+ * @example
+ * // Erase a cookie
+ * CookieManager.eraseCookie('username');
+ * 
+ * @example
+ * // Set a JSON object as a cookie
+ * const user = { name: 'John Doe', age: 30 };
+ * CookieManager.setJSONCookie('user', user, 7);
+ * 
+ * @example
+ * // Get a JSON object from a cookie
+ * const user = CookieManager.getJSONCookie('user');
+ * console.log(user); // Outputs: { name: 'John Doe', age: 30 }
+ */
+// a simple cookie reader/writer with json support
+class CookieManager {
+    static setCookie(name, value, days) {
+        let expires = "";
+        if (days) {
+            const date = new Date();
+            date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
+            expires = "; expires=" + date.toUTCString();
+        }
+        document.cookie = name + "=" + value + expires + "; path=/";
+    }
+
+    static getCookie(name) {
+        const nameEQ = name + "=";
+        const ca = document.cookie.split(';');
+        for(let i = 0; i < ca.length; i++) {
+            let c = ca[i];
+            while (c.charAt(0) == ' ') c = c.substring(1,c.length);
+            if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
+        }
+        return null;
+    }
+
+    static deleteCookie(name) {
+        document.cookie = name + '=; Max-Age=-99999999;';
+    }
+}