perf(serialize): faster Date serialization (#130)

* perf(serialize): use toISOString for faster Date serialization * fix(serialize): handle invalid `Date`
unjs · Mar 2, 2025 · baea38d · baea38d
1 parent b8a0cca
commit baea38d
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Showing 2 changed files with 8 additions and 1 deletion.
diff --git a/src/serialize.ts b/src/serialize.ts
@@ -138,7 +138,11 @@ const Serializer = /*@__PURE__*/ (function () {
     }
 
     $Date(date: any) {
-      return `Date(${date.toJSON()})`;
+      try {
+        return `Date(${date.toISOString()})`;
+      } catch {
+        return `Date(null)`;
+      }
     }
 
     $ArrayBuffer(arr: ArrayBuffer) {

diff --git a/test/serialize.test.ts b/test/serialize.test.ts
@@ -17,6 +17,9 @@ describe("serialize", () => {
       expect(serialize(new Date(0))).toMatchInlineSnapshot(
         `"Date(1970-01-01T00:00:00.000Z)"`,
       );
+      expect(serialize(new Date(Number.NaN))).toMatchInlineSnapshot(
+        `"Date(null)"`,
+      );
     });
 
     it("boolean", () => {