From 20cbb894125c5e58e0481dbdc0b1fe2e761a2cbe Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Mon, 27 Mar 2023 11:34:20 +0200
Subject: [PATCH] Simplify the `isPDFFunction` helper function

Originally we used helper functions for checking if something was a Dictionary or Stream, and then having an initial `typeof` check probably made sense.
However, given that we're using `instanceof` nowadays the additional check longer seems necessary.
---
 src/core/function.js | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/core/function.js b/src/core/function.js
index acce24feb..a9292b88f 100644
--- a/src/core/function.js
+++ b/src/core/function.js
@@ -502,9 +502,7 @@ class PDFFunction {
 
 function isPDFFunction(v) {
   let fnDict;
-  if (typeof v !== "object") {
-    return false;
-  } else if (v instanceof Dict) {
+  if (v instanceof Dict) {
     fnDict = v;
   } else if (v instanceof BaseStream) {
     fnDict = v.dict;