From b4c0af0075917d2f56a28ba440f1534e817f89be Mon Sep 17 00:00:00 2001
From: Alec Gibson <12036746+alecgibson@users.noreply.github.com>
Date: Wed, 12 Jun 2024 10:36:34 +0100
Subject: [PATCH] =?UTF-8?q?=E2=9A=A1=EF=B8=8F=20Avoid=20extra=20array=20al?=
 =?UTF-8?q?location?=
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Updated benchmark

```
benchRfdc*100: 206.686ms
benchRfdcProto*100: 218.722ms
benchRfdcCircles*100: 228.578ms
benchRfdcCirclesProto*100: 239.244ms
```
---
 index.js | 28 ++++++++++++++++++----------
 1 file changed, 18 insertions(+), 10 deletions(-)

diff --git a/index.js b/index.js
index f7d58cd..a964561 100644
--- a/index.js
+++ b/index.js
@@ -13,11 +13,15 @@ function rfdc (opts) {
   opts = opts || {}
   if (opts.circles) return rfdcCircles(opts)
 
-  const constructorHandlers = new Map([
-    [Date, (o) => new Date(o)],
-    [Map, (o, fn) => new Map(cloneArray(Array.from(o), fn))],
-    [Set, (o, fn) => new Set(cloneArray(Array.from(o), fn))]
-  ].concat(opts.constructorHandlers || []))
+  const constructorHandlers = new Map()
+  constructorHandlers.set(Date, (o) => new Date(o))
+  constructorHandlers.set(Map, (o, fn) => new Map(cloneArray(Array.from(o), fn)))
+  constructorHandlers.set(Set, (o, fn) => new Set(cloneArray(Array.from(o), fn)))
+  if (opts.constructorHandlers) {
+    for (const handler of opts.constructorHandlers) {
+      constructorHandlers.set(handler[0], handler[1])
+    }
+  }
 
   let handler = null
 
@@ -92,11 +96,15 @@ function rfdcCircles (opts) {
   const refs = []
   const refsNew = []
 
-  const constructorHandlers = new Map([
-    [Date, (o) => new Date(o)],
-    [Map, (o, fn) => new Map(cloneArray(Array.from(o), fn))],
-    [Set, (o, fn) => new Set(cloneArray(Array.from(o), fn))]
-  ].concat(opts.constructorHandlers || []))
+  const constructorHandlers = new Map()
+  constructorHandlers.set(Date, (o) => new Date(o))
+  constructorHandlers.set(Map, (o, fn) => new Map(cloneArray(Array.from(o), fn)))
+  constructorHandlers.set(Set, (o, fn) => new Set(cloneArray(Array.from(o), fn)))
+  if (opts.constructorHandlers) {
+    for (const handler of opts.constructorHandlers) {
+      constructorHandlers.set(handler[0], handler[1])
+    }
+  }
 
   let handler = null
   return opts.proto ? cloneProto : clone