From 88ca152be79b78f6e94bdd2d89c10d45310bbea8 Mon Sep 17 00:00:00 2001
From: Max Franz <maxkfranz@gmail.com>
Date: Thu, 7 Dec 2017 16:55:17 -0500
Subject: [PATCH] Add the ability to hash lists of strings #2027

---
 src/util/hash.js | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/src/util/hash.js b/src/util/hash.js
index 59a43a85d9..fac8faf4c2 100644
--- a/src/util/hash.js
+++ b/src/util/hash.js
@@ -33,4 +33,24 @@ let hashString = function( str, seed ){
   return hashIterableInts( iterator, seed );
 };
 
-module.exports = { hashIterableInts, hashString };
+let hashStrings = function(){
+  return hashStringsArray( arguments );
+};
+
+let hashStringsArray = function( strs ){
+  let hash;
+
+  for( let i = 0; i < strs.length; i++ ){
+    let str = strs[i];
+
+    if( i === 0 ){
+      hash = hashString( str );
+    } else {
+      hash = hashString( str, hash );
+    }
+  }
+
+  return hash;
+};
+
+module.exports = { hashIterableInts, hashString, hashStrings, hashStringsArray };