From 2c75b640718d69eef02b857a9eb60d02dcd96ad3 Mon Sep 17 00:00:00 2001
From: cjihrig <cjihrig@gmail.com>
Date: Sat, 25 Aug 2018 12:23:08 -0400
Subject: [PATCH] grpc-js-core: remove extra map() calls in fromHttp2Headers()

The extra map() calls added an extra loop over the arrays
just to trim() a string. This commit moves the trim() into
the forEach() and drops the map().
---
 packages/grpc-js-core/src/metadata.ts | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/packages/grpc-js-core/src/metadata.ts b/packages/grpc-js-core/src/metadata.ts
index 71fe5e09..e53b18a9 100644
--- a/packages/grpc-js-core/src/metadata.ts
+++ b/packages/grpc-js-core/src/metadata.ts
@@ -205,9 +205,9 @@ export class Metadata {
             result.add(key, Buffer.from(value, 'base64'));
           });
         } else if (values !== undefined) {
-          values.split(',')
-              .map(v => v.trim())
-              .forEach(v => result.add(key, Buffer.from(v, 'base64')));
+          values.split(',').forEach(v => {
+            result.add(key, Buffer.from(v.trim(), 'base64'));
+          });
         }
       } else {
         if (Array.isArray(values)) {
@@ -215,7 +215,7 @@ export class Metadata {
             result.add(key, value);
           });
         } else if (values !== undefined) {
-          values.split(',').map(v => v.trim()).forEach(v => result.add(key, v));
+          values.split(',').forEach(v => result.add(key, v.trim()));
         }
       }
     });