add function to test valid URL

scripts/utils/URLs.js

@@ -3,14 +3,33 @@ URL tools
 */
 
 class URLs {
-     /*
-     Remove the protocol from the URL.
+	/*
+	Remove the protocol from the URL.
 
-     @param {string} URL the URL to clean
-     */
-     static clean(URL) {
-          return((URL.trim().replace(/(^\w+:|^)\/\//, ``).split(`?`))[0]);
-     }
+	@param {string} URL the URL to clean
+	*/
+	static clean(URL) {
+		return((URL.trim().replace(/(^\w+:|^)\/\//, ``).split(`?`))[0]);
+	}
+
+	/*
+	Check if the URL is valid through checking its patterns. 
+	
+	@param {string} location the URL to check
+	@return {boolean} the state
+	*/
+	static test(location) {
+		let STATE = false;
+		
+		// Convert to URL object.
+		try {
+			STATE = !!(new URL(location));
+		} catch(err) {
+			STATE = false;
+		}
+
+		return STATE;
+	}
 }
 
 export {URLs};