es5-compliance

To convert ES6+ JavaScript to ES5 for ServiceNow server-side scripts, you must identify and replace modern syntax with ES5-compatible equivalents. This ensures compatibility with the Rhino engine used across business rules, script includes, and scheduled jobs.

ServiceNow server scripts fail with ES6 syntax because the platform uses the Rhino engine, which only supports ES5 JavaScript. Using modern constructs causes syntax errors and runtime failures in business rules, script includes, and background scripts.

ServiceNow background scripts and scheduled jobs support ES5 JavaScript syntax. You must enforce ES5 patterns and avoid ES6+ constructs to ensure Rhino compatibility and prevent runtime failures across instances.

You cannot use ES6 features in ServiceNow business rules and script includes because the Rhino engine requires ES5 syntax. You must apply ES5-friendly patterns and conversion guidelines to migrate existing code.

The best way to validate ES5 compliance for ServiceNow workflows is to use a guided validation workflow. This process applies pattern mappings and enforces ES5 syntax to ensure compatibility across instances.