Add support for defined but not implemented Symbol.for (#252)

* Add support for defined but not implemented Symbol.for
indutny · Aug 14, 2020 · 90573ef · 90573ef
1 parent 5707aed
commit 90573ef
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/lib/bn.js b/lib/bn.js
@@ -370,7 +370,11 @@
   // Check Symbol.for because not everywhere where Symbol defined
   // See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol#Browser_compatibility
   if (typeof Symbol !== 'undefined' && typeof Symbol.for === 'function') {
-    BN.prototype[Symbol.for('nodejs.util.inspect.custom')] = inspect;
+    try {
+      BN.prototype[Symbol.for('nodejs.util.inspect.custom')] = inspect;
+    } catch (e) {
+      BN.prototype.inspect = inspect;
+    }
   } else {
     BN.prototype.inspect = inspect;
   }