[Robustness] stringify: avoid relying on a global undefined (#427)

ljharb · Dec 27, 2021 · 65c669e · 65c669e
1 parent 6024134
commit 65c669e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/stringify.js b/lib/stringify.js
@@ -147,7 +147,7 @@ var normalizeStringifyOptions = function normalizeStringifyOptions(opts) {
         return defaults;
     }
 
-    if (opts.encoder !== null && opts.encoder !== undefined && typeof opts.encoder !== 'function') {
+    if (opts.encoder !== null && typeof opts.encoder !== 'undefined' && typeof opts.encoder !== 'function') {
         throw new TypeError('Encoder has to be a function.');
     }