Client-side logging utility for ServiceNow

Client-Side Components/Client Scripts/Logger Utility/LoggerUtility.js

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+//UI Script
+(function() {
+    'use strict';
+
+    window.Logger = (function() {
+        const isDebugEnabled = true; // change it to 'true' for production when needed
+
+        function formatMessage(level, ...args) {
+            const timestamp = new Date().toISOString();
+            return [`[${timestamp}] [${level}]`, ...args];
+        }
+
+        return {
+            info: (...args) => isDebugEnabled && console.info(...formatMessage('INFO', ...args)),
+            debug: (...args) => isDebugEnabled && console.debug(...formatMessage('DEBUG', ...args)),
+            warn:  (...args) => isDebugEnabled && console.warn(...formatMessage('WARN', ...args)),
+            error: (...args) => console.error(...formatMessage('ERROR', ...args)) // always log errors
+        };
+    })();
+})();
+
+
+Client Side Usage:
+
+ *   Logger.info('Form loaded successfully');
+ *   Logger.debug('Field value:', g_form.getValue('short_description'));
+ *   Logger.warn('Potential issue detected');
+ *   Logger.error('An error occurred', errorObject);

Client-Side Components/Client Scripts/Logger Utility/README.md

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+# ServiceNow Client-Side Logger Utility
+
+A lightweight, reusable JavaScript utility for client-side logging within the ServiceNow platform.
+
+# Purpose
+
+This utility provides developers a standardised, timestamped, and easily toggleable logging mechanism for client-side scripts in ServiceNow.  
+It improves debugging efficiency and code consistency while minimising console noise in production.
+
+
+# Features
+1. Timestamped log messages [YYYY-MM-DDTHH:MM:SS]
+2. Log levels: INFO, DEBUG, WARN, and ERROR
+3. Easily enable/disable debug mode globally
+4. Lightweight and ECMAScript 6–compliant
+5. Works in Client Scripts, UI Scripts, and Service Portal widgets
+
+# Usage in ServiceNow instance
+Create the UI Script with the code provided in LoggerUtility.js
+And follow the usage described in the same file for any client side logging