fix#3978

graphql · Feb 13, 2024 · f4e2387 · f4e2387
1 parent 9c90a23
commit f4e2387
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/jsutils/instanceOf.ts b/src/jsutils/instanceOf.ts
@@ -9,7 +9,7 @@ import { inspect } from './inspect.js';
 export const instanceOf: (value: unknown, constructor: Constructor) => boolean =
   /* c8 ignore next 6 */
   // FIXME: https://github.com/graphql/graphql-js/issues/2317
-  globalThis.process != null && globalThis.process.env.NODE_ENV === 'production'
+  globalThis.process != null && globalThis[process.env.NODE_ENV] === 'production'
     ? function instanceOf(value: unknown, constructor: Constructor): boolean {
         return value instanceof constructor;
       }