Return null if the input is undefined value. (#3412)

langchain-ai · Nov 28, 2023 · 8684351 · 8684351
1 parent f6d0614
commit 8684351
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/langchain/src/output_parsers/json.ts b/langchain/src/output_parsers/json.ts
@@ -2,6 +2,11 @@
 // MIT License
 
 export function parsePartialJson(s: string) {
+  // If the input is undefined, return null to indicate failure.
+  if (typeof s === "undefined") {
+    return null;
+  }
+
   // Attempt to parse the string as-is.
   try {
     return JSON.parse(s);